Giving up US passport and obtaining citizenship of India

I am a US Passport holder with an OCI card. Moved back to India in 1998. Looking to give up my US citizenship and obtain Indian passport. Can anyone help me with the process? Understand one has to live continuously in India for at least a year before putting in the application. My job takes me out of the country every 3-4 months for a week or two. How do I manage?