About
Built by people who take the science seriously.
PeriLens builds products and delivers services of the highest standard that turn climate and hazard science into confident decisions, across physical climate risk, agritech, solar and wind energy, and urban infrastructure. Substance over fluff.
PeriLens Pvt. Ltd. · Hyderabad, Telangana, India
Leadership
Team & advisers.
Operating depth in climate science and engineering, anchored by independent scientific review.
Senior scientist and former Deputy Director of the Earth & Climate Sciences Area (ECSA) at the National Remote Sensing Centre (NRSC), ISRO, with 36 years of research spanning water resources, cryosphere and atmospheric studies. She brings deep expertise in remote sensing and applied science to the geophysical and hydrological foundations of PeriLens' hazard methodology, and was a member of the 35th Indian Scientific Expedition to Antarctica.
- Ex-Deputy Director, ECSA (Earth & Climate Sciences Area), NRSC, ISRO
- 36 years research across water resources, cryosphere & atmospheric studies
- 50+ articles in national & international journals
- Former Group Director & General Manager, Outreach, Jeedimetla campus
- 35th Indian Scientific Expedition to Antarctica
Veteran academic and water resources researcher with wide experience in administration and infrastructure development at Osmania University, Hyderabad. Specialises in water resources engineering, urban flood and watershed modelling, and geospatial applications to civil engineering, providing independent review of hazard methodology and scientific terminology.
- 30+ years research & teaching · ex-Head of Department, Osmania University
- 100+ articles in international & national journals
- Major projects: MHRD-SPARC, SERB, DST & UGC grants
- Specialisation: water resources, urban flood & watershed modelling, geospatial civil engineering
Remote sensing, GIS and hazard modelling specialist who has built physical climate risk pipelines across government and industry, from national Earth observation science to commercial climate risk SaaS. Field experience includes a national scientific expedition to Antarctica.
- RS & GIS · hazard modelling · 10+ years
- Ex-National Remote Sensing Centre, ISRO
- Ex-Intensel Limited, Hong Kong
- M.E. Water Resources Engineering, University College of Engineering, Osmania University
- B.Tech Civil Engineering, JNTUH Hyderabad
- 36th Indian Scientific Expedition to Antarctica (Bharati research station)
Faculty member at the Engineering Staff College of India (ESCI), Hyderabad, specialising in hydrology, urban flood management and climate change, and an expert in hydrodynamic modelling and urban flood assessment. At PeriLens he leads methodology and workflow development end to end for urban infrastructure and flood resilience solutions, with a primary focus on Hyderabad, helping build answers grounded in science that hold up in a changing climate for sustainable urban planning.
- Ph.D. Civil Engineering, Osmania University · hydrodynamic studies for water sensitive urban design
- Faculty, Engineering Staff College of India (ESCI), Hyderabad
- Visiting Scientist, Texas A&M University, USA (Aug–Nov 2022)
- Modelling & imagery: HEC-HMS, HEC-RAS, SWMM, PCSWMM, SWAT, ERDAS, ArcGIS
- Data & ML stack: Xarray, PyTorch
- Nationally funded research projects: UGC, DST-SERB, MHRD-SPARC
- Published in SCI & SCOPUS journals; international conference presentations
Sairam Thangellapally
Business Development Officer & HR
Drives business development and people operations at PeriLens, with a finance and tax background including direct experience in tax compliance for individuals and companies.
- M.Com, LL.B & CMA
- Business development & HR
- Tax compliance for individuals & companies




