In 2005, the government's Right to Information Act became "a boon to many like me who are groping in the dark," says Vasu.
Under the RTI Act, Vasu wrote to Major General R S Sujalani on July 18, 2006 asking for the documents connected to his son's death. Once again, there was no reply from the army.
After four long months, Vasu got a letter from the army. Finally, he got all the documents on January 18 this year, six months after he asked for them.
Till he received the documents through RTI, Vasu had no inkling of what had happened to his son between the 22nd night and 23rd evening.
"I have been going through these documents several times. I know everything by heart now. Now, I have more questions than answers," says Vasu.
With fresh evidence collected from the documents, the father has written to Defence Minister A K Antony and the director of the Central Bureau of Investigation, asking for a CBI enquiry.
'Though two inquiries were done by the army, both of them threw up more questions than answers,' Vasu wrote.
'Because of the unfairness and untruthfulness of the enquiries, my son's mysterious death has to be investigated by the CBI. Myself and my wife Savithri have nothing more to do in our lives except unearth the truth regarding our son's demise which would ultimately give us some peace though we would never be able to get our son back.'
Twenty days have passed since the letter was sent to Defence Minister Antony. He is yet to get a reply.
Image: S Vasu and Savithri, Major Ravi Shankar's parents
Also see: The soldiers who know no fear