NEW DELHI: Senior Country telecom operator Airtel has announced an increase in postpaid monthly expenses by 12% in some plans, effective December in Delhi NCR region. 

"As of December 3, 2014, car plan bill to revise your mobile Airtel Rs 199 per month to 224 rupees per month," Airtel said in a message to customers. 

Industry sources said Airtel has increased rates by low-rent schemes. 

When contacted, a spokesman for Airtel, said "There is only a marginal revision in monthly rentals of some of our postpaid plans in Delhi-NCR with no change in plan benefits. We continue to offer excellent value proposition to customers . "

Airtel has a mobile subscriber base of over 20 crore customers, which include both prepaid and postpaid users. Last week, Bharti Airtel had reported almost threefold jump in consolidated at Rs 1.383 million rupees for the September quarter on revenue growth of mobile data net profit. 

This is the second increase in the types of telecommunications services by the company within three months. In September, the company had increased rates to mobile internet by 33% and reduced benefits under the plans for its prepaid customers. 

An increase in the rates of telecommunications services has become more frequent since the last two years after a number of players in the market had been following the cancellation of mobile phone licenses in the case of Supreme Court in 2G spectrum.