I quoted a speech he gave. I was in 7th grade then. I also said AB Vajpayee sat on "Sanketik Bhookh Hartal" that day for the imagined unemployment his zeal for information technology was to going to cause to India. He had a friend called Sam Pitodra who gave India the first STD based telephone dialling system. Before that you had to wait for 3 days to make trunk call from Mathura to Delhi. He introduced satellite imaging of agricultural areas to estimate agricultural production (this information was given to me by a person who is with the BJP).
As for Quattrochi two non congress governments later you still dont have proofs. Incidentally it was Vajpayee government who gave him clean chit.