In which of the following regions of India are shale gas resources found?1.Cambay Basin2.Cauvery Basin3.Krishna-Godavari BasinSelect the correct answer using the code given below

1. A

   1 and 2 only

   Cambay (Khambhat) and Cauvery are both identified shale-gas basins in India, but Krishna–Godavari is also in the Directorate General of Hydrocarbons / MoPNG assessment. Stopping at 1 and 2 is incomplete.

2. B

   3 only

   Krishna–Godavari alone omits Cambay and Cauvery, which are likewise listed as shale-gas prospects. 3 only is not the key.

3. C

   2 and 3 only

   Cauvery and KG without Cambay would drop one of the principal western Indian shale basins. 2 and 3 only is therefore incomplete.

4. D

   1, 2 and 3

   Shale-gas resources in India have been assessed in several onland basins, including Cambay, Cauvery and Krishna–Godavari, besides others such as Damodar and Indo-Gangetic. All three named basins are therefore correct, so (d) is the official key.

Summary. Official key is (d) 1, 2 and 3. India’s shale-gas exploration policy (2013) and DGH studies flag multiple Gondwana and Tertiary basins. Cambay in Gujarat, Cauvery in Tamil Nadu–Puducherry, and KG on the east coast are all on that list. The question does not ask which basin is commercial yet; it asks where resources are found. All three qualify.