As per Delhi Special Police Establishment (DSPE) Act, 1946, who of the following is the chairperson of the Committee that recommend for appointment to the post of Superintendent of Police & above, including extension or curtailment of their tenure in CBI?
1) Cabinet Secretary
2) Secretary of the Ministry of Home Affairs
3) Secretary of the Ministry of Personnel, Public Grievances and Pensions
4) Central Vigilance Commissioner
4) Central Vigilance Commissioner