I arrive into DEL airport on 29 April at 11am. I will be in New Delhi for 38 hours, for I depart DEL airport on 1 May at 1am.

It looks like I will need a India Visa, but what is the best way to obtain a India Visa? I have found websites that charge between $60 to $110, should I just wait until I arrive to DEL airport?

Thank you for your help and time, I would greatly appreciate anyone's feedback.