Its easy to mine the bitcoins (although takes some time) but in order to cashout your bitcoins directly to your bank account, you need to have a good resource. I will put this up for you here.

1. Bitfinex

Make an account on bitfinex, submit all the documents required for verification of your account and after verification, you will be able to withdraw your bitcoins directly to your bank account (in your local currenc)

2. www.cex.io

You can not only cash out your bitcoins here but also buy them from your credit card instantly and that too with no limit. Fill out the form and verify your account, withdraw to your local bank account and enjoy.