In which of the following Statements a solar power plant a 4000 MW capacity is planned to be set-up?

The answer is B) Rajasthan. The 4000 MW solar park was planned at Bhadla in Jodhpur district, which the state government and MNRE projected as one of the largest solar parks in the world. Bhadla is in the Thar desert, where high solar irradiation and cheap land make utility-scale solar practical.

• Gujarat is wrong for this figure. Charanka in Patan is a known park, but it is far smaller than 4000 MW.
• Madhya Pradesh is wrong. Its flagship is the Rewa Ultra Mega Solar Project, about 750 MW.
• Tamil Nadu is wrong. Kamuthi in Ramanathapuram is a large single project of roughly 648 MW, not a 4000 MW park.

The core concept is the solar park scheme of MNRE and the ultra mega solar power projects under JNNSM, which pooled land, transmission and approvals in one place. This links to Mains GS-3 on renewable energy targets, land acquisition and grid integration. Note that Bhadla is now operational at well over 2000 MW, and Rajasthan's overall solar capacity has grown far beyond 2015 levels, so the planned figure and the current figure should be kept separate.

Trap: aspirants pick Gujarat because it was the first state to host a major solar park. Remember that the question asks about a planned 4000 MW park, which points to Rajasthan.