What is the truth behind PM Modi's claim on INS Viraat?

Prime Minister Narendra Modi's allegation that Rajiv Gandhi used INS Viraat as a personal taxi was rejected by former Navy chief Admiral (retd) L Ramdas as well as by a former commanding officer of the aircraft carrier. Vice Admiral (Retd) Vinod Pasricha, who was commanding the ship during the then prime minister's visit, said all protocols were followed during Gandhi's official trip in 1987, adding no foreigners or other guests were present.