Nokia Siemens Networks (NSN) has filed a legal challenge against its disqualification on technical grounds as a bidder for state-owned Bharat Sanchar Nigam Ltd’s (BSNL’s) recent 94 million GSM line tender, the Business Standard reports. NSN had submitted bids for the northern, southern and western zones of BSNL’s tender, each of which required the rollout of 25 million GSM lines. The Finnish equipment vendor has filed the case in the Delhi High Court, and it is rumoured that another company may be considering similar action; other vendors disqualified included ZTE Telecom, Nortel and Alcatel-Lucent. The disqualified companies are all understood to have objected to the fact that BSNL rejected bids without providing a reason or clarification, and NSN has suggested that the tender favoured certain vendors. A spokesperson for NSN also noted that it had formally complained about the matter to the Competition Commission of India and the Central Vigilance Commission.