PhD, Energy Studies, Jan 2009 - Dec 2013, Indian Institute of Technology, Delhi
Development & experimental investigation of multi-cylinder port-injected SI engine fueled with CNG, HCNG, and Hydrogen
Master of Technology (M.Tech.), Automotive Engineering, Jul 2006 - Jun 2008, Vellore Institute of Technology, Vellore / Automotive Research Association of India (ARAI), Pune
M.Tech. Thesis: “Production of biodiesel from Karanja oil and its utilization in compression ignition engines”
Bachelor of Technology - BTech, Mechanical Engineering Sep 2001 - Jun 2005, Kurukshetra University
RESEARCH, TEACHING, or OTHER INTERESTS
Renewable Energy, Sustainability and the Environment, Automotive Engineering, Mechanical Engineering, Fuel Technology
Asset-agnostic end-of-line NVH diagnostics through cross-power order analysis: A unified framework for automotive component screening Roshan Raman, Mahesh Kumar Balthy, Rohit Singh Lather Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, 2026 This study presents a unified End-of-Line (EOL) Noise–Vibration–Harshness (NVH) diagnostic framework that integrates three complementary analytical modules—Cross-Power Order Health Index (CPO-HI), Domain-Adaptive Quantile Thresholding (DAQT), and Multi-Reference Synchronous Coherence (MRSC). Unlike amplitude-only or manually tuned spectral methods, the approach consolidates order-domain cross-spectral information, data-driven acceptance bands, and coherence-weighted filtering to deliver objective and cycle-time-neutral screening. The framework is evaluated on two heterogeneous automotive subsystems—alternators and steering racks—using near-field acoustics with electrical and speed references. Explicit mathematical definitions, signal-processing parameters, and statistical analyses are provided to substantiate reproducibility. Defective alternators exhibited CPO-HI values above 1.5 relative to 0.75–0.9 for healthy units, while defective steering racks displayed inner-race order-band energies near 5.5 compared with 1.8 for nominal samples. Quantitative validation demonstrates >53% noise suppression relative to amplitude-based baselines and ROC-AUC values above 0.92 for defect classification. Cross-asset generalization was confirmed through Kolmogorov–Smirnov significance tests. The results establish a transferable and computationally lightweight NVH screening system capable of supporting intelligent, data-driven EOL operations.
A numerical approach to investigate the effect of various fluids on the performance of a heat pipe Rajiva Lochan Mohanty, Rohit Singh Lather, Sharon Bashyam, Sumanta Chaudhuri, Mihir Kumar Das Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, 2024 The present study is carried out using CFX, a commercial computational fluid dynamics (CFD) software, to estimate the thermal characteristics of a heat pipe. A heat pipe consists of three concentric circular tubes with three different split sections: Evaporator, adiabatic, and condenser sections. A detailed parametric study takes water and methanol as working fluids – Additionally, a study investigates the heat pipe with condenser section subjected to ambient air. The complete analysis is performed for an existing heat pipe with given design characteristics such as orientation, diameter and length, wick structure, and the stated circumstances and intake flow to the evaporator. The results are reported and compared in graphical form. It is observed that the water improves the heat pipe thermal features in terms of temperature than that of methanol. The maximum surface temperature is recorded in the evaporator zone at 132 oC, while the lowest temperature was measured at the conclusion of the condenser portion at 87.6 oC. The condenser portion's extreme surface temperature is 79.93 oC, whereas the evaporator portion's extreme surface temperature is 127 oC. When attributes are compared at atmospheric pressure, water outperforms methanol in terms of merit. This shows that compared to methanol, water has greater heat transfer properties.
A Novel End-of-Line Acoustic–Vibration-Based Testing Tool for Quality Assurance and Supplier Control of Gasoline Direct Injection Fuel Pump MK Balthy, R Raman, RS Lather, H Caliskan, P Barmavatu, H Hong, ... Flow Measurement and Instrumentation 103338 (0955-5986) , 2026 2026
Asset-agnostic end-of-line NVH diagnostics through cross-power order analysis: A unified framework for automotive component screening R Raman, MK Balthy, RS Lather Proceedings of the Institution of Mechanical Engineers, Part D: Journal of … , 2026 2026
Autonomous Vehicle Steering Noise Diagnosis Using a Novel End-of-Line Acoustic Screening Methodology MK Balthy, R Raman, RS Lather Journal of Vibration Engineering & Technologies 13 (7), 471 , 2025 2025
Realtime Life Cycle Assessment, Synthesizing Life Cycle Inventory with Business Process Management, Sustainable Growth in the Fourth Industrial Revolution DK Sahu, Nidhi Sahu, Lather Rohit Singh, Bhalla International Journal of Industrial and Product Design Engineering 2 (2), 1 - 9 , 2024 2024
A numerical approach to investigate the effect of various fluids on the performance of a heat pipe RL Mohanty, RS Lather, S Bashyam, S Chaudhari, MK Das Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2023 2023 Citations: 2
Emerging Trends in Mechanical and Industrial Engineering Select Proceedings of ICETMIE 2022 RR Xianguo Li, Mohammad Mehdi Rashidi, Rohit Singh Lather 2023 Citations: 8
A Qualitative Approach for End-Of-Line Testing of an Alternator Using a Unique Noise Screening Method MK Balthy, RS Lather, D Rana Emerging Trends in Mechanical and Industrial Engineering: Select Proceedings … , 2023 2023 Citations: 1
An Experimental and Mathematical Analysis for Improvement of Gas Stove Efficiency A Mathur, RS Lather, V Chauhan, R Sharma, T Mehta Computational and Experimental Methods in Mechanical Engineering 239, 33 - 42 , 2021 2021 Citations: 2
Emerging Trends in Mechanical Engineering: Select Proceedings of ICETMIE 2019 LM Das, N Kumar, RS Lather, P Bhatia Springer , 2021 2021 Citations: 2
Performance Analysis of an LPG Cooking Stove for Improvements and Future Usability Perspective RS Lather National Conference on IC Engines and Combustion, 633-643 , 2019 2019 Citations: 3
Performance and emission assessment of a multi-cylinder SI engine using CNG & HCNG as fuels RS Lather, LM Das International journal of hydrogen energy 44 (38), 21181-21192 , 2019 2019 Citations: 70
Improvement of the domestic LPG cooking stoves: a review D Dahiya, RS Lather, P Bhatia Indian Journal of Science and Technology 9 (S1), 1-8 , 2016 2016 Citations: 16
Production of oil from waste plastics and polythene using pyrolysis and its utilization in compression ignition (CI) engine S Bhat, RS Lather Indian journal of science and technology 9 (48), 16 , 2016 2016 Citations: 7
Experimental Investigation of a Single Cylinder S.I Engine Fueled with Gasoline-Butanol Blends N Gaur, D Dahiya, RS Lather Carbon Science and Technology 8 (3), 36 - 45 , 2016 2016
Computational Analysis of Multi Cylinder S.I. Engine Intake Manifold For Power Improvement T Tanwar, V Yadav, U Verma, T Sharma, RS Lather, A Gupta International Journal of Applied Engineering Research 10 (78) , 2015 2015
Effect of Lean Operation on Engine Performance for CNG & HCNG RS Lather, LM Das Symposium on International Automotive Technology , 2015 2015
Development & Experimental Investigation of Multi Cylinder Port Injected SI Engine Fuelled with CNG, HCNG and Hydrogen RS Lather Indian Institute of Technology Delhi , 2014 2014
HCNG: Viable fuel for Indian Metro Cities RS Lather, LM Das 9th International Symposium on Fuels and Lubricants, A078 , 2014 2014
Combustion Measurement in SI Engine: Technique and Analysis RS Lather, LM Das National Conference on I.C Engines and Combustion, 2013NCICEC214 , 2014 2014
The Effect of Modifying Throttle Body for Gas Injectors on Engine Performance and Emissions of SI Automotive Engine RS Lather, LM Das SAE Technical Paper, 6 , 2013 2013 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
Performance and emission assessment of a multi-cylinder SI engine using CNG & HCNG as fuels RS Lather, LM Das International journal of hydrogen energy 44 (38), 21181-21192 , 2019 2019 Citations: 70
Improvement of the domestic LPG cooking stoves: a review D Dahiya, RS Lather, P Bhatia Indian Journal of Science and Technology 9 (S1), 1-8 , 2016 2016 Citations: 16
Emerging Trends in Mechanical and Industrial Engineering Select Proceedings of ICETMIE 2022 RR Xianguo Li, Mohammad Mehdi Rashidi, Rohit Singh Lather 2023 Citations: 8
Production of oil from waste plastics and polythene using pyrolysis and its utilization in compression ignition (CI) engine S Bhat, RS Lather Indian journal of science and technology 9 (48), 16 , 2016 2016 Citations: 7
Performance Analysis of an LPG Cooking Stove for Improvements and Future Usability Perspective RS Lather National Conference on IC Engines and Combustion, 633-643 , 2019 2019 Citations: 3
A numerical approach to investigate the effect of various fluids on the performance of a heat pipe RL Mohanty, RS Lather, S Bashyam, S Chaudhari, MK Das Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2023 2023 Citations: 2
An Experimental and Mathematical Analysis for Improvement of Gas Stove Efficiency A Mathur, RS Lather, V Chauhan, R Sharma, T Mehta Computational and Experimental Methods in Mechanical Engineering 239, 33 - 42 , 2021 2021 Citations: 2
Emerging Trends in Mechanical Engineering: Select Proceedings of ICETMIE 2019 LM Das, N Kumar, RS Lather, P Bhatia Springer , 2021 2021 Citations: 2
A Qualitative Approach for End-Of-Line Testing of an Alternator Using a Unique Noise Screening Method MK Balthy, RS Lather, D Rana Emerging Trends in Mechanical and Industrial Engineering: Select Proceedings … , 2023 2023 Citations: 1
The Effect of Modifying Throttle Body for Gas Injectors on Engine Performance and Emissions of SI Automotive Engine RS Lather, LM Das SAE Technical Paper, 6 , 2013 2013 Citations: 1
A Novel End-of-Line Acoustic–Vibration-Based Testing Tool for Quality Assurance and Supplier Control of Gasoline Direct Injection Fuel Pump MK Balthy, R Raman, RS Lather, H Caliskan, P Barmavatu, H Hong, ... Flow Measurement and Instrumentation 103338 (0955-5986) , 2026 2026
Asset-agnostic end-of-line NVH diagnostics through cross-power order analysis: A unified framework for automotive component screening R Raman, MK Balthy, RS Lather Proceedings of the Institution of Mechanical Engineers, Part D: Journal of … , 2026 2026
Autonomous Vehicle Steering Noise Diagnosis Using a Novel End-of-Line Acoustic Screening Methodology MK Balthy, R Raman, RS Lather Journal of Vibration Engineering & Technologies 13 (7), 471 , 2025 2025
Realtime Life Cycle Assessment, Synthesizing Life Cycle Inventory with Business Process Management, Sustainable Growth in the Fourth Industrial Revolution DK Sahu, Nidhi Sahu, Lather Rohit Singh, Bhalla International Journal of Industrial and Product Design Engineering 2 (2), 1 - 9 , 2024 2024
Experimental Investigation of a Single Cylinder S.I Engine Fueled with Gasoline-Butanol Blends N Gaur, D Dahiya, RS Lather Carbon Science and Technology 8 (3), 36 - 45 , 2016 2016
Computational Analysis of Multi Cylinder S.I. Engine Intake Manifold For Power Improvement T Tanwar, V Yadav, U Verma, T Sharma, RS Lather, A Gupta International Journal of Applied Engineering Research 10 (78) , 2015 2015
Effect of Lean Operation on Engine Performance for CNG & HCNG RS Lather, LM Das Symposium on International Automotive Technology , 2015 2015
Development & Experimental Investigation of Multi Cylinder Port Injected SI Engine Fuelled with CNG, HCNG and Hydrogen RS Lather Indian Institute of Technology Delhi , 2014 2014
HCNG: Viable fuel for Indian Metro Cities RS Lather, LM Das 9th International Symposium on Fuels and Lubricants, A078 , 2014 2014
Combustion Measurement in SI Engine: Technique and Analysis RS Lather, LM Das National Conference on I.C Engines and Combustion, 2013NCICEC214 , 2014 2014
