CHENNAI: BSNL subscribers in the city are in a spot due to soaring call drops over the past 10 days. "Call drops are very usual in the BSNL Chennai circle. "We are reducing the call drop ratio from 4% to 2%," BSNL official added. "Poor signals and pathetic internet connectivity in the city are taking a toll on my business. For more than a week, the frequency of call drops has shot up..