Indian electronic commerce and payment system PayTm has updated its app to include biometric security.Earlier this month, the company also changed the transfer limits for its money transfer app, which has 160 million users.Another user-oriented feature includes the ability to scan QR codes from the images in the gallery.This means now you can take the picture of the QR code of someone's wallet and transfer money to it later on.Merchants can now accept up to Rs. 50,000 (US$730) directly into their bank accounts. They can now declare themselves on the app itself and accept up to Rs. 50,000 directly. The amount is settled at midnight every day without any settlement charges.