congrats,
Everything is mentioned with RPRF letter please go through it.
You can pay in INR on single Bank draft.
The bank draft should be made for the exact amount and in favour of "Canadian High Commission" or "Receiver General for Canada".
Read more regarding fees:
http://www.cic.gc.ca/english/information/fees/fees.asp#visas_permits4. Right of Permanent Residence Fee (RPRF)
(Canadian dollars)
For the acquisition of permanent resident status $490
This fee is payable by principal applicants (with some exceptions) and accompanying spouses and common-law partners. It must be paid before the immigrant visa is issued overseas or before the applicant becomes a permanent resident in Canada.
The following applicants are not required to pay this fee:
•dependent children of a principal applicant or sponsor, a child to be adopted, or an orphaned brother, sister, niece, nephew or grandchild; and
•protected persons, including Convention refugees.
whats your CHC? if its New Delhi, read post just yesterday we replied here on same forum.
link :
http://www.canadavisa.com/canada-immigration-discussion-board/hw-to-send-rprf-to-chc-t76493.0.html;msg870994#msg870994OMM