mumbai the tapin tapout buses are gaining popularity as two buses are running with 70 capacity of passengers daily who use mobile apps or chalo smartcards for digital travelthey tap in while boarding and tap out at the time of exit from the bus while the fare is automatically calculated and deducted from their mobilesmartcard wallet said best general manager lokesh chandra who hopes that buses will have 90 passengers by month endbest has introduced two buses on the csmtncpa office going a115 routes it plans to extend services to 20 other buses in officegoing routes in south mumbai soonit provides convenience to commuters to directly board a bus and alight at his or her bus stop no more conductor interface said chandra the cashless system which is faster saves paper and cutting of trees officials said it will also reduce cash handling costs at depotsthe digital system helps maintain a database of commuters tickets and journeys undertaken to generate patterns of travel on various routes he added