A 3-D Mathematical Model of Cupola, N. N. Viswanathan, A.K. Lahiri and M. N. Srinivasan, ATM of IIM, Calcutta, 1995.

Modelling of Solid Flow in Shaft Furnace, N. N. Viswanathan, A.K. Lahiri and M. N. Srinivasan, ATM of IIM, Calcutta, 1995.

Modelling Strategy for Counter Current Shaft Reactor Design, N.N. Viswanathan and A. K. Lahiri, ICRAMP-1997.

Mathematical Modelling Applied to FAR Cupola, N. N. Viswanathan, M. N. Srinivasan and A. K. Lahiri, World Foundry Congress, Budapest, 1998.

Application of Simulation Techniques in Improving Process Performance: A Few Case Studies, Indo-US Workshop on Future Trends in Intelligent Processing of Metallic Materials, Goa, Indo-US Science & Technology Forum (22-24 Mar 2004) 85–94.

“Blast Furnace Modelling”, P.B Abhale, N.N. Viswanathan and N.B. Ballal, National Conference on Materials Processing Technology, 17th -19th Mar. 2005, held at IIT Bombay.

“Understanding Gas Phase Chemistry in HWCVD of a-Si: H”, presented in CHEMCON–05, New Delhi, India, December 2005.

Modelling of Heat Transfer During Al Wire Injection into a Steel Ladle, N. N. Viswanathan, National Workshop on Deoxidation, Roukela, June 2005.

Prediction of Gas Flow Through Layered Burden Profiles in Blast Furnace, P.B. Abhale, M. Guha, N.N. Viswanathan and N.B. Ballal, National Metallurgist Day Function, 14-16 Nov. 2006, held at Jamshedpur.

“Computational Studies of the HWCVD Process During Deposition of Amorphous and Nano-Crystalline Silicon Films,” presented at International Conference CAT – CVD4, Japan, Takayama, October 2006.

Bedarkar S.S., Viswanathan N.N. and Ballal N.B., Heat Transfer in Packed Bed in an Indirectly Heated Vertical Shaft, NMD-ATM 2006.

Bedarkar S.S., Viswanathan N.N. and Ballal N.B., Experimental Investigation of Heat Transfer in a Packed Bed of Iron Ore Particles, 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Sun City, South Africa, 2007.

Efficient Simulation of Gas Flow in Blast Furnace, P.B. Abhale, N.N. Viswanathan and N.B. Ballal, National Symposium for Materials Research Scholars (MR08), 2008 at IIT Bombay.

Control of Cr-Loss to the Slag Phase in High Alloy Steelmaking, Haijuan Wang, Mselly M. Nzotta, Nurni N. Viswanathan and Seshadri Seetharaman, VIII International Conference on Molten Slags, Fluxes and Salts – MOLTEN 2009, Jan. 19-21, 2009, Chile.

Prediction of Cohesive Zone in a Blast Furnace Using Wall Pressure Tap Data: Modeling Approach, P.B. Abhale, M. Guha, R.V. Ramna, N.N. Viswanathan, N.B. Ballal, National Metallurgist Day-Annual Technical Meeting, 14th -16th Nov. 2008, Delhi.

Investigation of Computational Aspects in Simulation of Gas Flow in Blast Furnace, P.B. Abhale, M. Guha, R.V. Ramna, N.N. Viswanathan and N.B. Ballal, Asia Steel 2009 International Conference, 24th -27th May, 2009, Busan, Korea.

Blast Furnace Modeling: Gaps and Challenges, N.B. Ballal, N.N. Viswanathan and Prakash Abhale, International Conference on the Advances in Theory of Ironmaking and Steelmaking (ATIS 2009), 9th -11th Dec., 2009, Bangalore, India.

Oxidation Kinetics of Ferrochrome Under Controlled Oxygen Pressures, Haijuan Wang, Nurni N. Viswanathan and Seshadri Seetharaman, The 12th International Ferro Alloy Congress, June 6-9, 2010, Helsinki, Finland. Accepted. Oral Presentation in English.

Oxidation Kinetics of Fe-Cr and Fe-V Liquid Alloys Under Controlled Oxygen Pressures, Haijuan Wang, Nurni N. Viswanathan and Seshadri Seetharaman, TMS 2010 Annual Meeting, Feb. 14-18, 2010, America. Oral Presentation in English.

Investigation of Mal-distribution in Blast Furnace Aerodynamics Using a Three Dimensional Simulation Model, P.B. Abhale, V.K. Yadav, N.N. Viswanathan, N.B. Ballal, ICCES'10: International Conference on Computational & Experimental Engineering and Sciences, Mar. 2010.

Evaluating the Chemical Diffusion Coefficient of Sulfur in Slag by Metal Analysis: Model Concept and Experiments, Luckman Muhmood, Nurni N. Viswanathan, and Seshadri Seetharaman, presented at Molten Conference 2012.

An Experimental Study of Reduction of Nickel Oxide by Hydrogen Under Microwave Irradiation, Suresh S., N.N. Viswanathan, [Oral Presentation - Accepted], Nickel Processing’15, Falmouth, Cornwall, U.K, May 2015.

Hydrogen Reduction of Single Pellet Nickel Oxide Under Microwave Irradiation, Suresh S., N.N. Viswanathan, [Oral Presentation - Accepted], IC-LGO’15, NML Jamshedpur, India, January 2015.

An Overview of Microwave Applications in Mineral Processing and Extractive Metallurgy, Suresh S., N.N. Viswanathan, [Oral Presentation], Physical Separation’13, Falmouth, Cornwall, U.K, 2013.

Microwave Mineral Processing: A Challenge in Process Intensification, Suresh S., N.N. Viswanathan, [Oral Presentation], LGO’13, NML Jamshedpur, India, 2013.

Microwave Steel Making: An Alternate Route, Suresh S., N.N. Viswanathan, [Oral Presentation], MR’10, IIT Bombay, India, 2010.

An Experimental Investigation of Reduction Kinetics of Single Pellet Nickel Oxide with Hydrogen, Suresh S., N.N. Viswanathan, [Oral Presentation], NMD-ATM, IISc Bangalore, India, 2010.

An Overview of Microwave Applications in Iron and Steel Making Industry, Suresh S., N.N. Viswanathan, [Oral Presentation], NMD-ATM, Kolkata, India, 2009.

Microwave Application to the Metallurgical Industries, Suresh S., N.N. Viswanathan, [Poster Presentation], NMD-ATM, XLRI Jamshedpur, India, 2012.

Model for Reduction of Iron Oxide Pellet with a C-O-H-N Gas Mixture Considering Water Gas Shift Equilibrium in the Gas While it Diffuses Through the Product Layer, Bharath N. Ballal, presented at International Mineral Processing Conference 2012.

Efficient Computation of Gas Flow in Blast Furnace in 3-D, Abhale P. B., Yadav V. K., Nurni V., & Ballal B. N., 6th Int. Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012: Including Proceedings from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore, Vol. 1, p. 722-732, 2012.

Process Modelling Efforts: A Few Examples from Iron and Steel Making, N. N. Viswanathan and N. B. Ballal, Plenary Lecture at IIM-NMD-2013, Banaras.

Optical Dilatometer: A New Way to Understand and Quantify Sintering Kinetics of Iron Ore Pellets, NMD-ATM, Nov. 2014, Pune, India.

Studying the Sintering Behavior of Oxidized Magnetite Pellet During Induration, ICSTI, AISTech, May 2015, Cleveland, USA.

Effect of Heating Rates on the Sintering of Oxidized Magnetite Pellets During Induration, METEC, June 2015, Düsseldorf, Germany.

Draining of Gas Bubbles at Interface Between Two Liquids – Some Observations, Albin R, S. Basu, and N. N. Viswanathan, to be presented as keynote lecture at ICS 2015, China.

Effect of Heating Rates on the Sintering of Oxidized Magnetite Pellets During Induration, Sandeep K., Ahmed H., Nurni V., Andersson C., & Magnusson G., METEC, 2015, Düsseldorf.

Studying the Sintering Behavior of Oxidized Magnetite Pellet During Induration, T.K. S., Nurni V., Ahmed H., Andersson C., & Björkman B., Association for Iron & Steel Technology, 2015, Ohio.

Haijuan Wang, Nurni N. Viswanathan, Seshadri Seetharaman, "Utilization of CO2 in Metallurgical Processes," COM 2015, 2015, Toronto, Invited Talk.

Albin Rozario, Nurni N. Viswanathan, Somnath Basu, "Draining of Gas Bubbles at Interface Between Two Liquids - Some Observations," ICS2015, 2015, Beijing, Invited Paper.

N. N. Viswanathan, T. K. Sandeep Kumar, H. Ahmed, C. Andersson, and B. Björkman, A Methodology to Quantify the Physico-Chemical Phenomena During Induration of Single Magnetite Pellet, STIS 2017, IIT Kanpur.

Snigdha Ghosh, N. N. Viswanathan, N. B. Ballal, Dynamic Model of BOF, International Seminar on Converters, IIT Bombay, Dec 2018.

S. Ghosh, N. N. Viswanathan, N. B. Ballal, “Static Holdup of Hot Metal and Slag in Packed Bed of Coke — A Fundamental Study”, The 8th International Conference on Simulation in Steel STEELSIM, 2019, Toronto, Ontario, Canada.

E. Akhilandeshwari, S. Ghosh, N. N. Viswanathan (invited talk), N. B. Ballal, “Static Liquid Holdup in Packed Bed”, The International Conference on Advances in Process Metallurgy (APM), Indian Institute of Science, Bangalore, India, Jul 2019.

S. Ghosh, N. N. Viswanathan (invited talk), N. B. Ballal, “Static Liquid Holdup in Packed Bed”, The 3rd International Conference on Science and Technology of Ironmaking and Steelmaking (STIS), Kanpur, India.

S. Ghosh, A. Erram, N. N. Viswanathan (invited talk), N. B. Ballal, “Static Liquid Holdup in a Packed Bed: An Overview”, MOLTEN 2020, Seoul, South Korea, Feb 2021.

N. N. Viswanathan (invited talk), NMD ATM 2020 (held in Feb 2021), Modeling of Dripping Zone of Blast Furnace.

Deepoo Kumar, Nurni N. Viswanathan, Partha Sarathi Sarkar, Heat Transfer Model of Coil in a Bell Annealing Furnace, Recent Advances in Manufacturing Processes and Systems, Conference Paper, First Online: 03 March 2022.

Prof. N. N. Viswanathan (Invited Talk), Process Modelling from Iron and Steel Making – Some Case Studies, Advances in Materials and Processing: Challenges & Opportunities, IIT Roorkee, 2022.

Raja Ankit Anand, Nurni Neelakantan Viswanathan, Manish M. Pande, Hematite Ore Decomposition at Particle Scale, STIS Dec 2022, IIT Bombay.

T. K. Sandeep Kumar, Nurni N. Viswanathan, Hesham Ahmed, Charlotte Andersson, Influence of Load or Pressure on Rate of Sintering During Induration of Magnetite Pellet.

Prof. N. N. Viswanathan (invited talk), Designing Experiments to Model, PMMIS-22, IIT Kanpur.