Which maharaja of Manipur signed the Instrument of Accession with the Government of India?

Bodhchandra Singh

The correct answer is Option (2) → Bodhchandra Singh

The Maharaja of Manipur who signed the Instrument of Accession with the Government of India was Bodhchandra Singh.

He signed the document on 11th August 1947, shortly before India's independence. This agreement allowed Manipur to become a part of the newly formed Union of India.