India's biggest telecom firm Bharat Sanchar Nigam Limited has decided to invest Rs 15,000 crore by this fiscal on its expansion of services.

Public sector telecom giant intends to utilize the amount for mobile expansion and for services like 3G, broadband, wireless broadband, IPTV, WiMAX, mobile commerce (m-commerce), value-added landline, Enterprise Resource Planning and others.

Apart from this, BSNL aim is to add 35 million telephone lines by the end of this fiscal across the country and to commission fresh 3G network.

BSNL had launched 3G services on February 2 and at present the service is available in 70 towns. The company plan to provide 3G services in 700 cities by the end of calendar 2009.