Dr. Benjamin Das

Ph.D. in Mechanical Engineering from the Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology (NERIST), Deemed to be University, Under Ministry of Education, Government of India, Nirjuli, Arunachal Pradesh 791109, India.

Thesis Title: Experimental Investigation and Numerical Modelling of Macro and Micro-Scale Plasma Arc Welding Process.

M.Tech. in Computer Integrated Manufacturing and Automation (CIMA) from the Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology (NERIST), Deemed to be University, Under Ministry of Education, Government of India, Nirjuli, Arunachal Pradesh 791109, India. 

Thesis Title: Influence of Process Parameters on Weld Bead Dimensions during Fusion Welding: Experimental Investigation and Numerical Modeling.

B.E. in Mechanical Engineering from Solapur University, Maharashtra, India.

Thesis Title: Redesign and Manufacturing of Cane Carrier Roller Conveyor Chain Link for Cost Reduction Purpose.

Sponsored by: Dattachaya Chain Private Limited, Kolhapur, Maharashtra. It was a project under the “Rajiv Gandhi Science and Technology Commission, Maharastra".

• AISSCE (12th class) from Kendriya Vidyalaya No.1, Itanagar (CBSE Board).

• AISSE (10th class) from Kendriya Vidyalaya No.1, Itanagar (CBSE Board).

Assistant Professor, Faculty of Engineering, Assam down town University.

Associate Editor, Annals of Multidisciplinary Research, Innovation and Technology (AMRIT) Journal, from July, 2025 to till date.

Junior Research Officer at Assam down town University, from January 2024 to till date.

Teaching Assistant (T.A.)  at the Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Deemed to be University, Under Ministry of Education, Government of India, Nirjuli, Arunachal Pradesh, India, from July 2018 to April 2022.

List of Publications/ Conferences/ Workshops/Training Programme/Faculty Development Program

1. Benjamin Das, Sohini Chowdhury, Yadaiah Nirsanametla, Chander Prakash, Lovi Raj Gupta and Vladimir Smirnov: Three-Dimensional Transient Heat Transfer Analysis of MicroPlasma Arc Welding Process Using Two Different Heat Source Models, High Temperature Materials and Processes, 2023. Accepted. (SCIE and I.F. 1.5).

2. Benjamin Das, Yadaiah Nirsanametla and Arpan Kumar Mondal: An investigation on heat transfer analysis of Micro-Plasma arc welds using finite element method, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 62 (6), pp. 4249-4253, 2022. (Scopus Indexed).

3. Benjamin Das, N. Yadaiah, Rupshree Ozah, Sohini Chowdhury, Arpan Kumar Mondal and M. Muralidhar: A perspective review on estimation of keyhole profile during plasma arc welding process, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 5 (2), pp. 6345- 6350, 2018. (Scopus Indexed).

4. Sohini Chowdhury, N. Yadaiah, S. Mujaheed Khan, Rupshree Ozah, Benjamin Das and M.Muralidhar: A perspective review on experimental investigation and numerical modeling of electron beam welding process, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 5 (2), pp. 4811-4817, 2018. (Scopus Indexed).

5. Benjamin Das and Yadaiah Nirsanametla, Experimental Investigation of Plasma Arc SS 316L Welds on Metallographic Analysis and Micro-hardness Distribution, Annals of Multidisciplinary Research, Innovation and Technology (AMRIT), 3(2), 2024, 117-124 , ISSN: 2583-4657(online).

6. Benjamin Das, Sohini Chowdhury, Yadaiah Nirsanametla and Arpan Kumar Mondal: Effect of Process Variables in Submerged Arc Welding Process: Experimental and Numerical Investigations, International conference on Recent Advances in Mechanical Engineering (ICRAME-2020) held at Andhra University, Visakhapatnam, Andhra Pradesh, India from 26th – 28th February, 2020.

7. TEQIP-III FDP Program on “Recent Advancement in Welding and Joining Technology (RAWJT 2020).

8. One Week Online International Workshop on “Advancements and Future Research Trends in Laser Based Manufacturing Processes"(AFRLMP,2020).

9. Successfully attended the " Industry-Institute Interaction Programme with IDAC India Private Limited, Pune. Held at NERIST, Nirjuli, September 19th-20th, 2016.

10. Completed "Training on Industrial Computer Numerical Control (CNC) Systems" under the " Institute-Industry Interaction Programme (IIIP)" Sponsored by the World Bank Project (TEQIP-II), November 04th-08th,2016.

11. Participated in the " 4th INDEST User Convention (E-Journals User Training Workshop)" organized by the AICTE-INDEST USER COMMITTEE, NERIST, August 22nd-23rd August and October 31st 2015.

12. Training under the Infosys Campus Connect life skills program.

Ongoing Research Projects

1. Seed Money Grant for the Research project entitled "Investigating Laser-Based Additive Manufacturing of Advanced Materials for Biomedical Applications".

Memo No.: AdtU/R/2024-25/394

Investigators: Dr. Benjamin Das, Principal Investigator, Dr. Pulakesh Chetia, (Co-Principal Investigator)

Total cost of Project Rs. 2,95,000.00

2. Seed Money Grant for the Research project entitled "Bioethanol Production from bamboo-based Biowaste using Microbial Fermentation and Optimized Pretreatment Techniques".

Memo No. : AdtU/R/2025-26/454

Investigators: Dr. Ritismita Devi, Principal Investigator (PI), Dr. Benjamin Das, Co-PI, Dr. Manash P. Sarma, Co-PI, Dr. Amarendra Deka, Co-PI, Dr. Dhruba Sharma, Co-PI, Dr. Biswajyoti Das, Co-PI, Dr. Dapkupar Wankar, Co-PI. 

✓ Ministry of Human Resource Development (MHRD) Scholarship for doctoral studies (Ph.D.) at North Eastern Regional Institute of Science and Technology.

✓ The Graduate Aptitude Test in Engineering (GATE) Scholarship for post graduate studies (M. Tech.) at North Eastern Regional Institute of Science and Technology.

✓ Technical member in the “International Conference on Experimental and Computational Methods in Manufacturing ICECMM 2021”.

✓ Technical Member in the “International Workshop on Advancement and Future Research Trends in Laser-based Manufacturing Processes (AFRLMP-2020)".

Extra-Curricular Activities

✓ Participated in the 15th National Jamboree, Haridwar (Uttarkhand) under Bharat Scouts and Guides.

✓ Successfully completed Pratham, Dwitiya and Tritiya sopan in Scouts and Guides under Guwahati Region.

✓ Represented School in the Guwahati Region Intra-School basketball tournament held at Shillong, Meghalaya.

✓  Awarded Best Player (once) and Best Shooter (twice) in the annual inter-collegiate basketball tournament featuring College of Engineering, College of Pharmacy, and College of Polytechnic.

✓  Respresented College in the Intra-University basketball tournament 3 times, held at Solapur, Maharashtra, India.