Planning Commission Deputy Chairman Montek Singh Ahluwalia said the government should disinvest its stake in public sector units as aggressively as possible to moblise funds for development in critical areas such as health, education and infrastructure.Talking to newsmen in New Delhi, he said, as long as 51 per cent is in government hands, nobody should be worried.Our correspondent reports in its second stint, the UPA Government has so far gone for disinvestment in NHPC and Oil India through public issues.However, the roadmap for disinvestment in other PSUs has not been decided yet.