It seems as if Tata Communications is out to one-up BSNL -- or at least claim its share of the limelight, anyway. More specifically, the outfit has teamed up with Telsima in order to roll out the "world's largest commercial WiMAX network" in India. Over 5,000 enterprise / retail customers are already connected in ten cities, and there are plans in place to secure nearly a quarter million customers in retail alone during fiscal year 2009. Furthermore, we're hearing that the services should be stretched to 110 cities for enterprise users and 15 cities for the retail segment by the year's end, but users in Delhi, Mumbai, Pune, Bangalore, Chennai, Hyderabad, Cochin, Chandigarh, and Kolkata are the only ones celebrating at the moment. Not a bad way to grab a bit more market share from Bharat Sanchar Nigam Limited, eh?