Tata Teleservices on Monday said it will launch GSM service shortly, thereby following in the footsteps of Reliance Communications, which got into the arena last week, the first company in the country to be operating both in the CDMA and GSM fields.

"We will start our GSM services soon. We have got spectrum in 13 circles in one or two months. We expect to get spectrum in all the circles barring one or two," TTSL Managing Director Anil Sardana said.

RCom has launched GSM services in 11,000 towns, which would be extended to 22,000 towns in the next few months.

TTSL currently has a subscriber base of 32 million.