The official dealers are at Mcleod road. I have myself posted the contact details, and have seen several other posts in the Ravi Piaggio thread listing these details.
I have been to these to shops. I was so disappointed with what I saw, that there absolutely no question in my mind as to what motorcycle I was going to get. I'm not knocking the Ravi product. But, frankly, it is a poor product with poor sales and marketing. Think LONG and HARD about what you purchase.
I live 5 minutes from their Bhobtian chowk factory/office and I've been there. There wasn't anything there. The whole setup impressed upon me that I shouldn't go with this product. I understand how frustrating it is for anyone to make frequent trips to Mcleod road from far off places and trust me, you want to buy a motorcycle you can rely on.