According to reports, both Bharti Airtel and Reliance Communications have reduced roaming tariffs and also scrapped rental rates for roaming services with effect from today, following the guidelines issued by the Telecom Regulatory Authority of India (TRAI) last month.Bharti Airtel, which has slashed roaming charges by 56 percent as compared with the current market rates, hopes that this move will definitely benefit its over 33 million subscribers. After the reduction, a mobile user on roaming would be charged at Rs.1.40 per minute for making a local call as against existing rates of Rs.2.89-3.09. The charges for making STD calls on roaming would come down to Rs.2.40 per minute and that for incoming calls while roaming will be charged at Rs.1.75 per minute. The current charge for receiving incoming calls and making STD calls while roaming stand at Rs.3.54-3.99 respectively.Moreover, Bharti Airtel has also waived off the roaming rental of Rs.49 per month