Deputy Prime Minister of India command is necessary. The first Deputy Prime Minister of India was Vallabhbhai Patel, who was also home minister in Jawaharlal Nehru's cabinet. The office has since been only intermittently occupied. The seventh and last deputy prime minister was L. K. Advani, who took on the role in addition to his home ministership from 2002 to 2004 in Atal Bihari Vajpayee's government. The current government does not have a Deputy Prime Minister. On multiple occasions, proposals have arisen to make the post permanent, but without result. The same goes for the post of deputy chief minister at the state level. Keys
Principal Secretary to the Prime Minister of India Principal Secretary to the Prime Minister of India The Principal Secretary to the Prime Minister of India (PS to the PM; IAST: ) is the senior-most bureaucrat in, and the administrative head of, the Prime Minister's Office. The officeholder is generally a civil servant, commonly from the Indian Administrative Service and occasionally from the Indian Foreign Service. The post is considered one of the most influential in the Indian civil services, and some principal secretaries are considered more powerful and influential than senior government ministers. The Prime Minister's Secretariat (PMS)—headed by an officer of the rank of joint secretary to