Nokia Siemens has filed suit against Indian state-owned operator BSNL in an attempt to block its $6 billion GSM tender process.
BSNL disqualified NSN from a 93-million line GSM tender on technical grounds, instead shortlisting Huawei and Ericsson.
But NSN has challenged the decision to exclude it, and has petitioned a court to block the tender, the Economic Times said.
The Andhra Pradesh High Court has agreed to hear the case, and has asked BSNL not to finalize the tender for the south zone until a ruling can be reached.
NSN has argued that BSNL failed to provide a reasons for the disqualification, stating the company was confident it had met all the technical requirements of the tender.
The body representing BSNL's employee unions has asked the operator to counterfile against NSN for blocking its expansion plans. It alleges the suit forms part of a conspiracy aiming to weaken BSNL and reduce its ability to compete with the nation's private players.