According to sources, India’s ONGC is trying to find out the location and size of oil and gas reservoirs at Ganga basin near Kasganj-Etah-Farrukhabad border. Seismic data survey is being done in order to get the details of the rock types and their locations beneath the surface of the Earth. Seven-member team is completing the survey by digging small borewells at a farm in the Tajpur Tigra village of Patiyali.