After the Rajiv Gandhi government was re-elected to power in 1984 and a security review drew lessons from the former PM’s assassination, it was decided to raise a special protection unit for protecting the Prime Minister. This unit, which came into being in 1985, was named the Special Protection Group (SPG) with its task being to insulate the Prime Minister and his family members from attacks. The SPG continued to function without legislative sanction till 1988, when the SPG Act came into force.
After Rajiv Gandhi demitted office in 1989, his SPG cover was withdrawn in 1990 when the then Cabinet Secretary moved a note recommending that the former PM’s security outside Delhi ought to be the responsibility of state governments, as SPG personnel couldn’t be spared. Moreover, the SPG Act did not provide for securing former Prime Ministers. A year later, on 21 May, 1991, the former Prime Minister was assassinated by a LTTE suicide bomber in Tamil Nadu.