People living in US can also file RTI’s to Indian PIO by following the below
1) RTI application to the concerned PIO of the concerned department directly ,
for example if it to the MHA then send it to the Home Minister PIO .
2) The RTI application also needs to be accompanies by a check of 27 cents ( Rs
10 ) payable to Embassy of India, Washington, DC.
3) Application must be accompanied documentary proof of Indian Citizenship (like
copy of personal particulars pages of passport.)
Read link below for full information: