In which of the following regions of India are shale gas resources found? 1. Cambay Basin 2. Cauvery Basin 3. Krishna-Godavari Basin Select the correct answer using the code given below.

The correct answer is (d) because the Directorate General of Hydrocarbons (DGH) has identified all three regions—the Cambay, Cauvery, and Krishna-Godavari basins—as major areas with significant shale gas potential in India. Candidates often mistakenly choose (c) by assuming shale gas is restricted to the East Coast, whereas the Cambay Basin in the west is actually one of the most promising sites for unconventional hydrocarbon exploration. The core concept tested is the geographical distribution of India’s sedimentary basins and their specific potential for non-traditional energy resources.