Post office – MIS scheme – Can I withdraw maturity money from postoffice in another city ?

My MIS (Monthly Income
Scheme) is maturing in current month. I started the MIS in different city than I reside now. Can I get the maturity money from my current city? or I necessarily need to visit the postoffice in the city where I started the MIS? My agent says that, as the rules are changed, the money can not be given to him, on my authority letter. I do have the passbook with me.

How to get best rates for cash US Dollars in Delhi?

I am an NRI and I am currently in Delhi. I have cash US Dollars and I want to convert this money into Indian rupees. Please tell me where I can change the money so that I can get very good rate. Banks give much less rate than the RBI rate. Would be grateful for your advice.