• B.Tech ,MAKAUT,2010

• ME, Jadavpur University,2014

• PhD.(Pursuing),Jadavpur University

• LASER Welding, Manufacturing

• I C Engine

• Md Raza,N Kumar,S Poddar “Characterization of Fuel-Air Mixing under Dynamic Condition in a Combustor”, Journal of Advances in Mechanical and Science (JAMES).(2015) 685-691

• N. Kumar, N. Kumar, A. Bandyopadhyay. “Optimization of Pulsed Nd:YVO₄ Laser Through Transmission Welding of Transparent Acrylic and Polycarbonate” Materials Today: Proceedings 5 (2018) 5235-5243

• R. Bhattacharya, N. Kumar, N. Kumar, A. Bandyopadhyay. “A Study on the Effect of Process Parameters on Weld Width and Heat Affected Zone of Pulsed Laser Welding of Dissimilar Transparent Thermoplastics without Filler Materials in Lap Joint Configuration”, Materials Today: Proceedings 5 (2018) 3674-3681.

• N. Kumar, N. Kumar, A. Bandyopadhyay. “The Effect of Process Parameters on Pulsed Nd:YVO₄ Laser Welding of Acrylic and Polycarbonate Sheets”, COPEN, IIT Madras, Chennai, 2017, 13-16.

• . N Kumar ,N Kumar ., A Bandyopadhyay . (2020) The Effect of Process Parameters on Pulsed Through Transmission Laser Welding of Acrylic and Polycarbonate Sheets. In: Shunmugam M., Kanthababu M. (eds) Advances in Simulation, Product Design and Development. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-32-9487-5_43

• N Kumar , N Kumar,Bandyopadhyay A. (2020) Nd:YVO₄ Laser Welding of Two Transparent Polymers in Lap Joint Configuration. In: Singh I., Bajpai P., Panwar K. (eds) Trends in Manufacturing Processes. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-32-9099-0_4

• N. Kumar,V. Kumar, S. Chakravarty, , N. Kumar, A. Bandyopadhyay. “Study of Effect of Process Parameters on Cutting a Gear Profile on an Acrylic Plate Using Laser Beam Machining”, TAME, Kalyani Govt. Engineering College, West Bengal, 2019.

• N. Kumar, N. Kumar, A. Bandyopadhyay. “Effect of Welding Parameters in Nd: YVO4 Laser Welding of Two”11 international confrence on precision meso,Micro and Nano Engineering ( COPEN-11) December 12-14,2029, IIT Indore

• N. Kumar, N. Kumar, A. Bandyopadhyay. “ Optimization of Weld Width in Nd: YVO4 Laser Welding of Dissimilar Transparent Polymers in Lap Joint Pattern” 11 international confrence on precision meso,Micro and Nano Engineering ( COPEN-11) December 12-14,2029, IIT Indore.

• .N. Kumar, N. Kumar, A. Bandyopadhyay “A State-of-the-Art Review of Laser Welding of Polymers - PartI:WeldingParameters”WeldingJournal(AWS),VOL100(7),2021,pp221-228,https://dx.doi.org/10.29391/2021.100.019

• N. Kumar, N. Kumar, A. Bandyopadhyay “ State-of-the-Art Review of Laser Welding of Polymers —PartII:Weld-QualityStudies”WeldingJournal(AWS),VOL100(7),2021,pp249-258,

• Teaching-8 years

• Industry-2 years

MHRD Scholarship (GATE-2012)