Mumbai, Jan 21 (Agencies): In the backdrop of the Adarsh Co-operative Housing Society scam in Mumbai, Defence Minister A K Antony admitted on Friday that the government was not careful in the past but policy changes would be undertaken to prevent such incidents.

"We are making policy changes so that in future such incidents (encroachments) do not occur. We have intitutionalsed a mechanism to prevent such things," the minister told reporters after commissioning Italian built fleet-tanker INS Deepak into the Indian Navy at the Naval Dockyard here.

The government has decided to computerise entire defence land, he said. "We are tightening the system in a time bound manner. In the past we we were not careful and we did not maintain records of defence lands properly," he said.

"As far as issuing NOCs on the land belonging to Defence is concerned, we are looking into the complaints we have received," the minister said.

"Henceforth we will ensure that only higher level officers go through all these procedures and such NOCs will not be issued," Antony said, adding defence land records would
be systematically computerised.

The Minister's statement comes in the backdrop of the Adarsh Housing Society scam in Mumbai, in which names of some retired army officials and a few politicians have cropped up.

Responding to a question on the arrest of three Chinese citizens near the Indo-Nepal border and their alleged incursions, "As far as the arrests of three Chinese citizens are concerned, I do not want to jump into any conclusion. Authorities are questioning them," Antony said.