The Department of Legal Affairs has asked the Commission, a recommendatory body, to submit a report on the issue.
The move assumes significance as the Supreme Court had recently said it would prefer a wider debate, in public as well as in court, before taking a decision on the constitutional validity of 'triple talaq', which many complain is abused by Muslim men to arbitrarily divorce their wives.
Law Minister D V Sadananda Gowda had earlier said that the issue could be referred to the Law Commission for examination.
"...Even the Preamble of our Constitution and Article 44 of the Constitution do say that there should be a Uniform Civil Code...It needs to have a wider consultation," he had said.
A decision "cannot be done in a day or two. It will take its own time", Gowda had said.
Implementation of a common civil code is part of the BJP's election manifesto. But the NDA, when it came to power in 1998 and 1999 and now under Narendra Modi, had kept contentious issues, including the UCC, on the backburner.