The piece of advice came from Khurshid in response to a question from reporters about claims being made by Ramdev's camp that Singh was joining their anti-corruption movement.
"V K Singh can don any role now after he has finished his term with Army. I hope he gives his right date of birth before joining Anna movement," the Minister said.
Reports emerging from Ramdev's camp claimed Singh would be soon a part of their campaign against corruption and black money.