Pragya Varshney

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  • Profile
  • QualificationsB. E., M. E., Ph. D
  • DesignationAssociate Professor
  • DivisionInstrumentation and Control Engineering
  • Contact No.+91-11-25000196(O)


Dr. Pragya Varshney is Associate Professor in the Division of Instrumentation and Control Engineering. She holds Bachelor of Engineering in Electrical Engineering form University of Roorkee (Now, IIT Roorkee), Roorkee, and Master of Engineering in Control and Instrumentation from Delhi College of Engineering, Delhi. She is Ph. D. from University of Delhi. Before joining NSIT, she was working as Lecturer (Contract) in Electronics and Communication Engineering at Delhi College of Engineering. Her research interests include Signal Processing, VLSI Design and Adaptive Control. She has published her work in various International Journals including IEEE Transactions on Circuits and Systems – II: Express Briefs. She has also presented her research work in several International IEEE Conferences in India and abroad. She is a member of IEEE since 2004 and life member of ISTE. She is regularly reviewing articles for some International Conferences and has reviewed few journal publications. Currently, she is guiding two Ph. D. research scholars.

Areas of Interest

Signal Processing, VLSI Design, Adaptive Control



  1. K. Singh and P. Varshney, “Optimization of PID Parameter using Genetic Algorithm,” Journal of Instrument Society of India, Volume 44, No. 2, pp. 103-105, June 2014.


  1. M.  Gupta, P.  Varshney and G.  S.  Visweswaran, “Digital fractional-order differentiator and integrator models based on first-order and higher order operators,” International Journal of Circuit Theory and Applications, Volume 39, Issue 5, pp. 461–474, May 2011.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Realizations of Fractional-Order Switched Capacitor Realizations of Fractional-Order Differentiators and Integrators Based on an Operator with Improved Performance,” Radioengineering Journal, Vol. 20, No. 1, April 2011, pp.  340-348.


  1. G. S. Visweswaran, P. Varshney and M. Gupta, “New Approach to Realize Fractional Power in z- Domain at Low Frequency,” IEEE Transactions on Circuits and  Systems—II: Express Briefs, Vol. 58, No. 3, March 2011, pp. 179-183.


  1. P.  Varshney, M.  Gupta and G.  S.  Visweswaran, “Implementation of Switched Capacitor Fractional Order Differentiator (PDδ) circuit,” International Journal of Electronics, Vol. 95, No. 6, pp. 531-547, Jan. 2008.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “New Switched Capacitor Fractional Order Integrator,” Journal of Active and Passive Electronic Devices JAPED, Vol. 2, No. 3, pp. 187-197, 2007.


  1. M. Gupta, P. Varshney and G. S. Visweswaran, “Design of Ladder Based Switched Current Circuits – A novel approach,” WSEAS Transaction on Circuits and Systems, Vol. 5, Issue 12, December 2006.




  1. N. Shrivastava & P. Varshney, “Low frequency recursive digital differentiator,” IEEE Conference CIPECH 2014, Ghaziabad, UP, India, Nov. 2014, pp. 104-107.


  1. P. Varshney & Sujit Kr. Gupta, “Implementation of Fractional Fuzzy PID Controllers for Control of Fractional-Order systems,” 3rd IEEE International Conference on Advances in Computing, Communications and Informatics (ICACCI 2014), Greater NOIDA, UP, India, Sept. 2014, pp. 1-7.


  1. Sujit Kr Gupta& P. Varshney, “Fractional Fuzzy PID Controller for Speed Control of DC Motor,” 3rd IEEE International Conference on Advances in Computing and Communications (ICACC 2013), Kochi, Kerala, India, DOI: 10.1109/ICACC.2013.7, Aug. 2013, pp.  1 – 4.


  1. P.  Varshney, “Evaluation and comparison of integer-order approximations for fractional integrators for application to fractional-order Chua systems,” 2011 IEEE International Conference on Signal and Image Processing Applications (ICSIPA), Nov. 2011, Malaysia, pp. 307 – 311.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Implementation of first and third order fractional order differentiators and integrators using switched capacitors,” 2010 India International Conference on Power Electronics (IICPE), Jan 2011, New Delhi, India, pp. 1-8.


  1. Vishal Mehra, Smriti Srivastava, and Pragya Varshney, “Fractional-Order PID Controller Design for Speed Control of DC Motor,” Third International Conference on Emerging Trends in Engineering and Technology (ICETET), IEEE 2010, Nov. 2010, pp. 422-425.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “First and higher order operator based fractional order differentiator and integrator models,” IEEE TENCON 2009, 23-26 Jan. 2009, Singapore, pp. 1 – 6.


  1. M. Gupta, P. Varshney, G. S. Visweswaran and B. Kumar, “Novel Digital differentiator and corresponding fractional order differentiator models”, SIGMAP 2008, International Conference on Signal Processing and Multimedia Applications, July 2008, Porto, Portugal, pp. 47-54.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Higher Degree Half Order Differentiators and Integrators,” 2nd International Conference on Embedded Systems, Mobile Communication and Computing, Aug. 2007, Bangalore.


  1. M. Gupta, P. Varshney and G. S. Visweswaran, “Design and Analysis of Switched Capacitor Fractional order Differentiator Circuit”, 3rd International Conference on Microwave, Antenna, Propagation and Remote sensing, Dec. 2006, Jodhpur.


  1. M. Gupta, P. Varshney and G. S. Visweswaran, “A Systematic Approach for the Design of Ladder based Switched Current Bandpass Filter”, Proc. 5th WSEAS International Conference on Circuits, Systems, Electronics, Control & Signal Processing, Dallas, USA, Nov. 2006, pp. 138-142.


  1. P. Varshney, N. Gupta, and S. Srivastava, “Realizations of Fuzzy Controller using Switched Capacitor Circuits”, Proc. CCCT-06, 4th International Conference on Computing, Communications & Control Technologies, Orlando, Florida, USA, July 2006, pp. 16- 19.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Effect of Finite Amplifier Gain, Bandwidth, and Non- Idealities of Switches in Switched Capacitor Ladder Circuits”, Proceedings of the 5th WSEAS International Conference on Instrumentation, Measurement, Circuits and Systems, Hangzhou, China, April  2006, pp. 300-305.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Novel Switched Capacitor Half Differentiator Using Schneider Operator,” ELECO 2005, 4th International Conference on Electrical and Electronics Engineering, Bursa, Turkey, Dec. 2005, site:


  1. P. Varshney, M. Gupta and G. S. Visweswaran, ‘Switched Capacitor Realization Of Fractional Order Differentiator’, Proc. 10th International Symposium on Integrated Circuits, Devices and Systems ISIC 2004, Suntec, Singapore, Sept. 2004, pp. 215-218.




  1. S. Midha, M. Gupta and P. Varshney,   “Low Power CMOS Transmission Gate in Sub- Threshold Region and its application” in ISTE conference, NSIT, May 31 -  June 1, 2008, New Delhi.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Influence of Non-ideal Effects in Switched Capacitor Ladder Circuits,” NCETET-2006, National Conference on Emerging Trends in Electronics Technologies, March 04-05, 2006, Jammu, pp. 21-26.


  1. N. Gupta, P. Varshney and S. Srivastava, “Realization of fuzzy model architecture,” NC-ECC 2006, National Conference on Energy, Communication and Computer Systems, Feb. 2006.


  1. P. Varshney, M. Gupta and G. S. Visweswaran, “Switched Capacitor Realizations Of Half Differentiator,” MTECS 2005 – National Conference on Modern Trends in Electronics and Communication Systems, Department of Electronics Engineering, ZH College of Engineering and Technology, AMU, Aligarh, pp. 9-13, March 2005.


  1. M.  Gupta, P.  Garg and P.  Varshney, “Mobile Technology For Education,” 34th   Annual Convention of ISTE, NSIT, New Delhi, paper no.  5-235, pp. 98, Dec. 2004.