In May 1977, The Janta Party government appointed which commission, to inquire into several aspects of allegation of abuse of authority.

Shah Commission

The correct answer is Option 3 - Shah Commission

In May 1977, the Janata Party government appointed a Commission of Inquiry headed by Justice J.C. Shah, retired Chief Justice of the Supreme Court of India, to inquire “into several aspects of allegations of abuse of authority, excesses and malpractices committed and action taken in the wake of the Emergency proclaimed on the 25th June, 1975”. The Commission examined various kinds of evidence and called scores of witnesses to give testimonies. These included Indira Gandhi who appeared before the Commission but refused to answer any questions. The Government of India accepted the findings, observations and recommendations contained in the two interim reports and third and final report of the Shah Commission. The reports were also tabled in the two houses of Parliament.