ICICI Pru investing allowed for non-citizens?

I am a USA citizen living in India. I was born in USA. I only have a USA passport. I am not of Indian origin. I have a PAN card and I pay Indian taxes each year.

Am I eligible to enroll in the ICICI Prudential Elite Life II investment plan?

Or are the ICICI Prudential investment plans only for Indian citizens?

I'm getting different answers on this from different people. The ICICI rep says its OK. A CA says I can invest. An SBI bank manager says India tax rules says this is only for Indian citizens.

Which is correct?

Thanks,

ICICI Pru investing allowed for non-citizens?