new delhi, Nov. 27 -- Tejas Networks Ltd will cooperate with Bharti Airtel Ltd and Bharat Sanchar Nigam Ltd (BSNL) to resolve the network interference issues reported in Rajasthan quickly, the Tata group firm said. The announcement follows the department of telecommunications, through its wireless planning and coordination wing, taking charge of the Airtel-BSNL signal interference matter, with officials saying the issue is under active supervision and moving toward a workable technical solution. "The interference observed at a few Airtel sites in the Rajasthan circle is in no way a reflection of the quality or capability of its equipment. The solution is to perform additional filtering on the antennas and does not require any change to our ...