New Delhi, Aug 9 - Telecom major Bharti Airtel Sunday launched its wireless data card for prepaid users in Delhi and the national capital region (NCR) that will enable Internet connectivity for laptops and other computing devices while on the move.

The data card can work on all the partner networks of Airtel when on national roaming and is compatible with GSM network while on international roaming, the company said in a statement.

'As market leaders, we have always ensured that Airtel customers get the best value, enjoy the finest services and benefit from cutting edge products. Prepaid customers can now use data card at a monthly rental of Rs.348 and enjoy 500 MB free data every month,' said Shashi Arora, Bharti Airtel's chief executive for mobile services in Delhi and NCR.

Airtel has recently been adjudged the top telecom service provider of 2009 by the Voice and Data magazine that is dedicated to telecom and Internet services.