National Programme on Technology Enhanced Learning (NPTEL)

IIT Roorkee is one of the eight institutions involved in the MHRD funded project on “National Programme on Technology Enhanced Learning” (NPTEL). The aim of the project is to improve the educational standard in all engineering institutions across the country. The project envisages design, development, delivery & evaluation of web-based courses and video courses.

The first, second and third phase of the project is already over. The courses are already freely available at NPTEL website at IIT Madras.

For more details NPTEL Phase- I/II/III

For more details please visit to: http://nptel.ac.in/

After successfully completion 1st, 2^nd and 3^rd phase, Now move to 4^th phase in which open online course will be offered through the portal http://onlinecourses.nptel.ac.in along the line of MOOCs (Massive Open Online Courses). The course will be for undergraduate/postgraduate students of technical university/college. Each course is followed by an in-person proctored exam conducted in select cities all over the country. While enrollment to the course and learning is free, the exam has a registration fee to cover the operational costs. Students who register and write the exam will receive a certificate from Centre for Continuing Education of the institute offering the online course.

The duration of the course offered can be of 3 types: 10hours (4 weeks), 20hours (8 weeks) & 30hours (12 weeks). The course runs are being aligned to the semesters of the colleges and it is suggested to have 2 runs per year: Jan-May and July-November.
Following schedule is suggested:
30-hours courses: Jan-April & July-October.
20-hours courses: Jan-March & July-September.
10-hours courses(2sets each): Feb & April; July & September.

Open Courses in July 2019:

S. No	Name of Instructor	Department	Course Title	Duration
1	Prof. Pradeep K. Jha	Metallurgical & Materials Engineering	Welding Metallurgy	30 Hrs
2	Prof. Sudeb Dasgupta	Electrical Engineering	Microelectronics: Devices To Circuits	30 Hrs
3	Prof. P. N. Agarwal	Mathematics	Higher Engineering Mathematics	30 Hrs
4	Prof. Santosh Rangnekar	Management	Training Of Trainers Or Managerial Skills For Interpersonal Dynamics	30 Hrs
5	Prof. Anil K. Sharma	Management	Management Accounting	30 Hrs
6	Prof. J. P. Singh	Management	Financial Derivatives & Risk Management	30 Hrs
7	Prof. Shishir Sinha	Chemical Engineering	Chemical Process Safety	30 Hrs
8	Prof. Anil K. Sharma	Management	Working Capital Management	30 Hrs
9	Prof. D. K Dwivedi	Mechanical Engineering	Fundamentals of manufacturing processes	30 Hrs
10	Prof. Binod Mishra	Humanities and Social Sciences	Soft skills	30 Hrs
11	Prof. Inderdeep Singh	Mechanical Engineering	Work System Design	30 Hrs
12	Prof. D.K. Dwivedi	Mechanical Engineering	Fundamentals of Surface Engineering: Mechanisms,Processes and Characterizations	30 Hrs
13	Prof. Mukesh Kumar Barua	Management	Project management for managers	30 Hrs
14	Prof. Prateek Kumar Jha	Chemical Engineering	Introduction to Polymer Physics	30 Hrs
15	Prof. Soumitra SataPathi	Physics	Solar Photovoltaics Fundamentals, Technology And Applications	20 Hrs
16	Prof. P. Mondal	Chemical Engineering	Technologies For Clean And Renewable Energy Production	20 Hrs
17	Prof. Vivek Pancholi & Prof. S. R. Meka	Metallurgical & Materials Engineering	Thermo-Mechanical And Thermo-Chemical Processes	20 Hrs
18	Prof. Kusumdeep	Mathematics	Operations Research	20 Hrs
19	Prof. Ram Sateesh Pasupuleti & Prof. Subhojyothi Samaddar	Architecture	Disaster Recovery And Build Back Better	20 Hrs
20	Prof. Avik Bhattacharya	Electrical Engineering	DC Microgrid and Control System	20 Hrs
21	Prof. Rajat Agarwal	Management	Toyota Production System	20 Hrs
22	Prof. Arun K. Saraf	Civil Engineering	Remote Sensing and Digital Image Processing of Satellite Data	20 Hrs
23	Prof. Yogesh Vijay Hote	Electrical Engineering	Advanced Linear Continuous Control Systems: Applications with MATLAB Programming and Simulink	20 Hrs
24	Prof. G. B. Kumbhar	Electrical Engineering	Electrical Distribution System Analysis	20 Hrs
25	Prof. N.P. Padhy & Prof. Premalata Jena	Electrical Engineering	Introduction to Smart Grid	20 Hrs
26	Prof. Ram Sateesh Pasupuleti	Architecture	Culturally Responsive Built Environments	20 Hrs
27	Prof. Saptarshi Kolay	Architecture	Contemporary Architecture and Design	20 Hrs
28	Prof. Smriti Saraswat	Architecture	Role of Craft and Technology in Interior - Architecture	20 Hrs
29	Prof. J.K.Nayak	Management	Marketing research and analysis	20 Hrs
30	Prof. Rajat Agarwal, Prof. Vinay Sharma	Management	Innovation, Business Models and Entrepreneurship	20 Hrs
31	Prof. Ameeya Kumar Nayak and Prof. Sanjeev Kumar	Mathematics	Numerical methods	20 Hrs
32	Prof. S.K.Gupta, Prof. Sanjeev Kumar	Mathematics	Matrix Analysis with Applications	20 Hrs
33	Prof. Pradeep Kumar Jha	Mechanical Engineering	Principles of Metal Forming Technology	20 Hrs
34	Prof. Ravi Kumar	Mechanical Engineering	Refrigeration and air-conditioning	20 Hrs
35	Prof. Gaurav Dixit	Management	Business Analytics & Text Mining Modeling Using Python	20 Hrs
36	Prof. Smita Jha	Humanities and Social Sciences	Interpersonal Skills	20 Hrs
37	Prof. Rashmi Gaur	Humanities and Social Sciences	Body language: Key to professional Success	10 Hrs
38	Prof. Shri Ram Yadav	Biotechnology & Bioengineering	Plant Developmental Biology	10 Hrs
39	Prof. Inderdeep Singh	Mechanical Engineering	Product Design Using Value Engineering	10 Hrs
40	Prof. Arun K. Saraf	Earth Sciences	Global Navigation Satellite Systems And Applications	10 Hrs
41	Prof.Kaushik Pal	Mechanical Engineering	Selection of Nanomaterials for Energy Harvesting and Storage Application	10 Hrs
42	Prof. Kaushik Pal	Metallurgical & Materials Engineering	Structural Analysis of Nanomaterials	10 Hrs
43	Prof. P. Gopinath	Biotechnology & Bioengineering	Biomedical nanotechnology	10 Hrs
44	Prof. Gaurav Dixit	Management	Business Analytics & Data Mining Modeling Using R Part II	10 Hrs
45	Prof. Shabina Khanam	Chemical Engineering	Unit operations of particulate matter	10 Hrs
46	Prof. Jayanta Kumar Ghosh	Civil Engineering	GPS Surveying	10 Hrs

Completed Courses in January 2019:

S. No	Name of Instructor	Department	Course Title	Duration
1	Prof. Uttam K. Roy	Architecture	Urban governance and Development Management (UGDM)	30 Hrs
2	Prof. Gargi Singh	Civil Engineering	Applied Environmental Microbiology	30 hrs
3	Prof. Bhanu Prakash Vellanki	Civil Engineering	Environmental Remediation of Contaminated Sites	30 hrs
4	Prof. Biswarup Das	Electrical Engineering	Computer Aided Power System Analysis	30 Hrs
5	Prof. J. K. Nayak	Management	Marketing Research and Analysis-II	30 hrs
6	Prof. Rashmi Gaur	Humanities	Literature, Culture and Media	30 hrs
7	Prof. Mukesh Kumar Barua	Management	Business Statistics	30 hrs
8	Prof. N. Sukavanam Prof. D.N. Pandey	Mathematics	Dynamical System and Control	30 Hrs
9	Prof. P. N. Agrawal	Mathematics	Advanced Engineering Mathematics	30 Hrs
10	Prof. Pradeep K. Jha	Mechanical Engineering	Financial Mathematics	30 Hrs
11	Prof. Anil K. Sharma	Management	Financial Statement Analysis and Reporting	30 Hrs
12	Prof. Gaurav Dixit	Management	Business analysis and data mining Modeling using R	30 Hrs
13	Prof. P.N. Agarwal Dr. S. K. Gupta	Mathematics	Mathematical Methods and its Applications	30 Hrs
14	Prof. Avik Bhattacharya	Electrical Engineering	Advance power electronics and Control	20 Hrs
15	Prof. Sudeb Dasgupta	Electrical Engineering	CMOS Digital VLSI Design	20 Hrs
16	Prof. Z. Rahman	Management	Global Marketing Management	20 Hrs
17	Prof. Rajat Agarwal	Management	Manufacturing Strategy	20 Hrs
18	Prof. Ankit Bansal	Mechanical Engineering	Radiative Heat Transfer	20 Hrs
19.	Prof. D K Dwivedi	Mechanical Engineering	Weldability of Metals: Mechanisms-weld defects & prevention	20 Hrs
20.	Prof. Inderdeep Singh	Mechanical Engineering	Manufacturing Guidelines for Product Design	20 Hrs
21.	Prof. Uttam Kumar Roy	Architecture	Housing Policy & Planning	20 Hrs
22.	Prof. J. K. Ghosh	Civil Engineering	Digital Land Surveying And Mapping(DLS&M)	20 Hrs
23.	Prof. P. Mondal	Chemical Engineering	Waste to Energy Conversion	20 Hrs
24.	Prof. Rajat Agrawal	Management	Supply Chain Analytics	20 Hrs
25.	Prof. S. K. Gupta & Prof. Sanjeev Kumar	Mathematics	Multivariable calculus	20 Hrs
26.	Prof. Anil Kumar	Mechanical Engineering	Automatic Control	20 Hrs
27.	Prof. Ravi Kumar	Mechanical Engineering	Steam and Gas Power Systems	20 Hrs
28.	Prof. D. K. Dwivedi	Mechanical Engineering	Joining Technologies for metals	20 Hrs
29.	Prof. P. K. Jha	Mechanical Engineering	Principles of Casting Technology	20 Hrs
30.	Prof. Kaushik Pal	Mechanical Engineering	Surface Engineering of Nanomaterials	20 Hrs
31.	Prof. Pushparaj Mani Pathak	Mechanical Engineering	Modelling and Simulation of Dynamic Systems	20 Hrs
32.	Prof. Vivek Pancholi	Metallurgical And Materials Engg	Material Science and Engineering	20 Hrs
33.	Prof. Vipul Rastogi	Physics	Fiber Optics	20 Hrs
34	Prof. Dr. B. V. Manoj Kumar, Prof. Bikramjit Basu	Metallurgical And Materials Engg	Friction and wear of materials: principles and case studies	20 Hrs
35.	Prof. Saptarshi Kolay	Architecture	User Interface Design	10 Hrs
36.	Prof. Shabina Khanamm	Chemical Engineering	Equipment Design: Mechanical Aspects	10 Hrs
37.	Prof. Gaurav Dixit	Management	MCDM Techniques Using R	10 Hrs
38.	Prof. Kaushik Pal	Mechanical Engineering	Inspection and Quality Control in Manufacturing	10 Hrs
39.	Prof. E. Rajasekar	Architecture	Principles and Applications of Building Science	10 Hrs
40.	Prof.Saptarshi Kolay	Architecture	Visual Communication Design for Digital Media	10 Hrs
41.	Prof. Shabina Khanam	Chemical Engineering	Mechanical Operations	10 Hrs
42.	Prof. Arun K. Saraf	Civil Engineering	Introduction to Remote Sensing	10 Hrs
43.	Prof. Meenakhi Rawat	Electrical Engineering	Basics of software defined Radios	10 Hrs
44.	Prof. Aninday Jayant Mishra	Humanities And Social Sciences	Sociology of Science	10 Hrs
45.	Prof. Smita Jha	Humanities	Perspectives on Neurolinguistic	10 Hrs
46.	Prof. Inderdeep singh	Mechanical Engineering	Product Design and Development	10 Hrs
47.	Prof. Arup Kumar Das	Mechanical Engineering	Convective Heat Transfer	10 Hrs

Completed Courses in July 2018:

S. No	Name of Instructor	Department	Course Title	Duration
1	Prof. Ram Sateesh Pasupuleti	Architecture	Culturally Responsive Built Environments	20 Hrs
2	Prof. Saptarshi Kolay	Architecture	Contemporary Architecture and Design	20 hrs
3	Prof. Smriti Saraswat	Architecture	Role of Craft and Technology in Interior - Architecture	20 hrs
4	Prof. Arun K. Saraf	Civil Engineering	Remote Sensing and Digital Image Processing of Satellite Data	20 Hrs
5	Prof. G. B. Kumbhar	Electrical Engineering	Electrical Distribution System Analysis	20 hrs
6	Prof. Yogesh Vijay Hote	Electrical Engineering	Advanced Linear Continous Control Systems: Applications with MATLAB Programming and Simulink	20 hrs
7	Prof. N.P. Padhy, Prof. Premalata Jena	Electrical Engineering	Introduction to Smart Grid	20 hrs
8	Prof. Avik Bhattacharya	Electrical Engineering	Facts Devices	20 Hrs
9	Prof. J.K.Nayak	Management	Marketing research and analysis	20 Hrs
10	Prof. Rajat Agarwal, Prof. Vinay Sharma	Management	Innovation, Business Models and Entrepreneurship	20 Hrs
11	Prof. Ameeya Kumar Nayak ,Prof. Sanjeev Kumar	Mathematics	Numerical methods	20 Hrs
12	Prof. S.K.Gupta, Prof. Sanjeev Kumar	Mathematics	Matrix Analysis with Applications	20 Hrs
13	Prof. Ravi Kumar	Mechanical Engineering	Refrigeration And Air-conditioner	20 Hrs
14	Prof. Pradeep K. Jha	Mechanical Engineering	Principles of Metal Forming Technology	20 Hrs
15	Prof. P.K.Jha	Mechanical Engineering	Principles of Casting Technology	20 Hrs
16	Prof. Inderdeep Singh	Mechanical Engineering	Processing of Polymers and Polymer Composites	20 Hrs
17	Prof. P. Gopinath	Biotechnology & Bioengineering	Biomedical nanotechnology	10 Hrs
18	Prof. Shabina Khanam	Chemical Engineering	Unit operations of particulate matter	10 Hrs
19.	Prof. Gaurav Dixit	Management	Business Analytics & Data Mining Modeling Using R Part II	10 Hrs
20.	Prof. Ameeya Kumar Nayak	Mathematics	Mathematical Modelling: Analysis and Applications	10 Hrs
21.	Prof. S.K. Gupta	Mathematics	Nonlinear Programming	10 Hrs
22.	Prof. Kaushik Pal	Metallurgical & Materials Engineering	Structural Analysis of Nanomaterials	10 Hrs

Completed Courses in July 2018:

S. No	Name of Instructor	Department	Course Title	Duration
1	Prof. Bhanu Prakash Vellanki	Civil Engineering	Environmental Engineering-Chemical Processes	30 Hrs
2	Prof. Binod Mishra	Humanities and Social Science	Soft skills	30 Hrs
3	Prof. Mukesh Kumar Barua	Management	Project management for managers	30 Hrs
4	Prof. Anil K. Sharma	Management	Working Capital Management	30 Hrs
5	Prof. P.N. Agrawal,Dr. D.N. Pandey	Mathematics	Integral Equations,calculus of variations and its applications	30 Hrs
6	Prof. P.N. Agrawal, Prof. D.N. Pandey	Mathematics	Ordinary and Partial Differential Equations and Applications	30 Hrs
7	Prof. D K Dwivedi	Mechanical Engineering	Fundamentals of manufacturing processes	30 Hrs
8	Prof. D.K. Dwivedi	Mechanical Engineering	Fundamentals of Surface Engineering: Mechanisms,Processes and Characterizations	30 Hrs
9	Prof. Inderdeep Singh	Mechanical Engineering	Work System Design	30 Hrs
10	Prof. Prateek Kumar Jha	Chemical Engineering	Introduction to Polymer Physics	30 Hrs

Completed Course in February 2018:

S. No	Name of Instructor	Department	Course Title	Duration
1	Dr. S. K. Gupta & Dr. Sanjeev Kumar	Mathematics	Multivariable calculus	20 Hrs
2	Dr. Anil Kumar	Mechanical Engineering	Automatic Control	20 hrs
3	Prof. D. K. Dwivedi	Mechanical Engineering	Failure analysis and Prevention	20 hrs
4	Prof. Ravi Kumar	Mechanical Engineering	Mechanical Measurement System	20 Hrs
5	Dr. Vivek Pancholi	Metallurgical And Materials Engg	Material Science and Engineering	20 hrs
6	Prof. Uttam Kumar Roy	Architecture	Housing Policy & Planning	20 hrs
7	Prof. P. Mondal	Chemical Engineering	Waste to Energy Conversion	20 hrs
8	Prof. Jayanta Kumar Ghosh	Civil Engineering	Digital Land Surveying And Mapping(DLS&M)	20 Hrs
9	Prof. Rajat Agrawal	Management	Supply Chain Analytics	20 Hrs
10	Prof. D. K. Dwivedi	Mechanical Engineering	Joining Technologies for metals	20 Hrs
11	Prof. Ravi Kumar	Mechanical Engineering	Steam and Gas Power Systems	20 Hrs
12	Prof. Pradeep Kumar Jha	Mechanical Engineering	Engineering Economic Analysis	20 Hrs
13	Prof. Kaushik Pal	Mechanical Engineering	Surface Engineering of Nanomaterials	20 Hrs
14	Prof. Anil Kumar	Mechanical Engineering	Introduction to Mechanical Vibration	20 Hrs
15	Prof. Pushparaj Mani Pathak	Mechanical Engineering	Modelling and Simulation of Dynamic Systems	20 Hrs
16	Prof. Vipul Rastogi	Physics	Fiber Optics	20 Hrs
17	Prof. Arun K. Saraf	Civil Engineering	Digital elevation models and applications	10 Hrs
18	Dr. Meenakhi Rawat	Electrical Engineering	Basics of software defined Radios	10 Hrs
19	Dr. Aninday Jayant Mishra	Humanities And Social Sciences	Sociology of Science	10 Hrs
20	Dr. Smita Jha	Humanities And Social Sciences	Perspectives on Neurolinguistic	10 Hrs
21	Dr. Ameeya Kumar Nayak	Mathematics	Numerical Methods: Finite difference approach	10 Hrs
22	Prof. E. Rajasekar	Architecture	Principles and Applications of Building Science	10 Hrs
23	Prof.Saptarshi Kolay	Architecture	Visual Communication Design for Digital Media	10 Hrs
24	Prof. Shabina Khanam	Chemical Engineering	Mechanical Operations	10 Hrs
25	Prof. Arun K.Saraf	Civil Engineering	Introduction to Geographic Information Systems	10 Hrs
26	Prof. Inderdeep singh	Mechanical Engineering	Product Design and Development	10 Hrs
27	Prof. Arup Kumar Das	Mechanical Engineering	Two phase flow and heat transfer	10 Hrs

Completed Course in Jan 2018 :

S.NO	Name of Instructor	Department	Course Title	Duration
1.	Dr. Gargi Singh	Civil Engineering	Applied Environmental Microbiology	30 Hrs
2.	Dr. Pradeep Kumar Jha	Mechanical Engineering	Theory of Production Processes	30 Hrs
3.	Prof. P. N. Agrawal & Dr. D. N. Pandey	Mathematics	Numerical Linear Algebra	30 Hrs
4.	Dr. Gaurav Dixit	Management	Business analysis and data mining Modeling using R	30 Hrs
5.	Dr. Inderdeep singh	Mechanical Engineering	Operations Management	30 Hrs
6.	Dr. A. K. Sharma	Management	Financial Statement Analysis and Reporting	30 Hrs

Completed Course in July 2017:

S. No	Name of Instructor	Department	Course Title	Duration
1.	Prof. P.Gopinath	Biological sciences & Biotechnology	Biomedical nanotechnology	10 Hrs
2.	Prof. S. Gangopadhay	Computer science and engineering	Introduction To Cryptology	20 hrs
3.	Prof. Binod Mishra	Humanities and Social Sciences	Soft skills	30 hrs
4.	Prof. J.K.Nayak	Management	Marketing research and analysis	20 Hrs
5.	Prof. Mukesh Kumar Barua	Management	Project management for managers	30 hrs
6.	Prof. P. N Agarwal Prof.D. N Pandey	Mathematics	Integral equations, calculus of variations and its applications	30 hrs
7.	Prof. S. K Gupta	Mathematics	Nonlinear programming	10 hrs
8.	Prof. Ameeya Kumar Nayak	Mathematics	Numerical methods	20 Hrs
9.	Prof. D K Dwivedi	Mechanical / Industrial/ Materials science and engineering	Fundamentals of manufacturing processes	30 Hrs
10.	Prof. P. Kumar Jha	Mechanical / Industrial/ Materials science and engineering	Modelling and simulation of descrete event system	20 Hrs
11.	Prof. Ravi Kumar	Mechanical / Industrial/ Materials science and engineering	Refrigeration And Air-conditioner	20 Hrs
12.	Prof. Barjeev Tyagi	Electrical Engg.	Optimal control	20 Hrs
13.	Prof. Shabina Khanam	Chemical	Unit Operations of Particulate Matter	10 Hrs
14.	Prof. Arun K. Saraf	Civil Engineering	Digital Image processing of remote sensening data	10 Hrs
15.	Prof. Inderdeeep Singh	Mechanical / Industrial/ Materials science and engineering	Processing of Polymers and Polymer composites	20 Hrs

Completed Course in April 2017:

S.NO	Name of Instructor	Department	Course Title	Duration
1	Prof. Arun K. Saraf	General	Introduction to Remote Sensing	10 Hrs
2	Saptarshi Kolay	Architecture	Visual Communication Design for Digital Media	10 Hrs
3	Dr. Rajat Agrawal	Management	Supply Chain Analytics	20 Hrs
4	Dr. Arup Kumar Das	Mechanical Engineering	Convective Heat Transfer	10 Hrs
5	Dr. Inderdeep singh	Mechanical Engineering	Product design and development	10 Hrs
6	Dr. Jayanta Kumar Ghosh	Civil Engineering	Digital Land Surveying and Mapping(DLS&M)	20 Hrs

Completed Courses in January 2017:

S. No	Name of Instructor	Department	Course Title	Duration
1	Prof. B. Mohanty	Chemical Engg.	Depreciation, alternate investment and profitability analysis	10 hrs
2	Dr. U. K. Roy	Architecture and planning	Housing Policy & Planning	20 hrs
3	Dr. P. M. Pathak	MIED	Modelling and Simulation of Dynamic Systems	20 hrs
4	Prof. D. K. Dwivedi	MIED	Joining Technologies for Metals	20 hrs
5	Dr. P. K. Jha	MIED	Principles Of Casting Technology	20 hrs
6	Dr. V. Rastogi	Physics	Fiber Optics	20 hrs
7	Dr. Anil Kumar	MIED	Introduction to Mechanical Vibration	20 hrs
8	Dr. Kaushik Pal	MIED	Surface Engineering of Nanomaterials	20 hrs
9	Dr. P. Mondal	Chemical Engg.	Waste to Energy Conversion	20 hrs
10	Dr. Ravi Kumar	MIED	Steam and Gas Power Systems	20 hrs
11	Dr. S. K. Gupta & Prof. P. N. Agarwal	Mathematics	Mathematical methods and its applications	30 hrs
12	Dr. Anil K. Sharma	Management Studies	Financial Statement Analysis and Reporting	30 hrs

Completed Courses in July 2016:

S. No.	Name of Instructor	Department	Course Title	Duration
1.	Dr. S. Gangopdhyaya	Computer Science & Engg.	Introduction to Cryptology	10hrs.
2.	Dr. Arup Kumar Das	Mechanical & Industrial Engg.	Two phase flow and heat transfer	10hrs.
3.	Dr. Ravi Kumar	Mechanical & Industrial Engg.	Refrigeration and air-conditioning	20hrs.
4.	Dr. Pradeep K. Jha	Mechanical & Industrial Engg.	Engineering Economic Analysis	20hrs.

Completed Courses in September 2016:

S. No.	Name of Instructor	Department	Course Title	Duration
1.	Dr. Bikash Mohanty	Chemical Engg.	Time value of money-concepts and calculation	10hrs.
2.	Dr. J. K. Gosh	Civil Engg.	GPS Surveying	10hrs.
3.	Dr. E. Rajasekar	Architecture and Planning	Principles and applications of building science	10hrs.
4.	Dr. A. K. Saraf	Earth Sciences	Introduction to Geographic Information System	10hrs.
5.	Dr. Shabina Khannam	Chemical Engg.	Mechanical Operation	10hrs.

E-Learning Centre

Indian Institute of Technology Roorkee