Ajishek Raj, Ram Bhagat, Pragati Kumar, D. R. Bhaskar, "Grounded-Capacitor Analog Inverse Active Filters using CMOS OTAs," 2021, 8th International Conference on Signal Processing and Integrated Networks (SPIN)

Ajishek Raj, Pragati Kumar, D. R. Bhaskar, "Third Order Low Frequency Sinusoidal Oscillators Employing CFOAs and Grounded Capacitors," 2021, 7th International Conference on Signal Processing and Communication (ICSC)

Ajishek Raj, Pragati Kumar, D. R. Bhaskar, "Four OTA-Based Mixed-Mode Filter Configuration And Quadrature Voltage Mode Sinusoidal Oscillator," 2021, 3rd International Conference on Advances in Computing, Communication Control and Networking (ICAC3N)

Ajishek Raj, Pragati Kumar, D. R. Bhaskar, "Multiple-Input Single-Output Universal Biquad Filters Using Reduced Number of OTAs," International Symposium on Advanced Electrical and Communication Technologies (ISAECT), 2019.

Ajishek Raj, D. R. Bhaskar, Pragati Kumar, "Multiple-Input Single-Output Universal Biquad Filter Using Single Output OTAs," 2018, 2nd IEEE International conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES-2018)

Ajishek Raj, Ram Bhagat, "Novel OTA based inductorless realisation of Chaos's circuit," 2016, 1st IEEE International Conference on Power Electronics. Intelligent Control and Energy Systems (ICPEICES-2016)