Paytm for business is a very useful aap for shopkeepers. You can easily take your order payments through paytm.you can register your merchant account.
This application is easy to handle.you have to just fill your document details such as addhar card detail, your bank account details, your pan card detail.your phone no which is connected with your saving account.
Within 24 hours your payment will automatically transfer to your saving account.
Some times lots of offers commes on it. For example , if you except 10 payment through scan you will get 50rs cashback.