Softbank-backed Paytm on Tuesday unveiled its ATMs or partner outlets where customers can open bank accounts, deposit cash and withdraw money. It plans to invest Rs 3000 crore over the next three years to expand these offline-distribution networks by allowing local stores to act as potential cash-in and cash-out points. It plans to add 100,000 Paytm ka ATMs across India to the current strength of 3,000 approved outlets. The company launched its payments bank last month. It offers zero charges on all online transactions and no minimum balance is required for holding an account.