The government on Monday said it would finalise the process of auctioning next generation 3G mobile spectrum by September 30.

Ahead of the 3G spectrum allocation process, the government would invite request for proposals for rolling out mobile number portability.

"In a week's time, preliminary procedure for MNP seeking RFP from vendors will be out," Telecom Secretary Siddharth Behura said.

Government had recently announced the guidelines for 3G spectrum and MNP, and had allowed foreign players to take part in the next generation telecom space.