source-google.com and news channels To counter competitors, state-run BSNL on Wednesday announced a national unlimited 3G mobile data plan for Rs. 1,099 and doubled the data usage limit in some existing plans. "Due to improvement in network, BSNL has been gaining customers. We are now first in the industry to offer unlimited 3G plan for Rs. 1,099 without reduction in speed. This will rejoice [sic] our customers and help them experience improved BSNL networks," BSNL Chairman and Managing Director Anupam Shrivastava said. BSNL has doubled data usage in Rs. 549 plan for 3G service to 10GB from 5GB. The telecom firm has doubled 3G data usage in Rs. 156 plan to 2GB which will be valid for 10 days.