How can I marry a foreign national in India?

Requested sir, Feel to embrace to sent mail.,but now i dont have other option . Previously few days , in watching your youtube videos ,really its very very helpful to every. Not wasting your time more ; 1)i wanted to ask you my age is 28 years and to whom i wanted to marry is 42 years .can we acceptable to marry in court. ___ 2) she belongs to sri lanka and divorced one abd having one kid (im accepting ). Can our marriage is acceptable in court. 3) Im from jammu and kashmir and she belongs to sri lanka .; Can we marry in delhi court .?? And what would be the cast there. In the last my humble request to you please help me to these query . Im verry very trouble and helpless. Please revert !! Thank you Sahil singh +91-8800788535