Honda 2 Wheelers India — price of the 4g, a massive disparity in what you declare and what is charged

I purchased one 4g activa from your authorized dealer, suvam honda, saheednagar, bhubaneswar on 11.12.2017. I was quoted with the following price break up which i adhered to.
Ex-showroom-rs53425
Rto, road tax &others-rs5494
Insurance-rs1691
Total-rs60610
However your price via internet are rs51460, rs3687, rs1500 respectively.
Rto and other expenses as per their rc-rs3206.
1. May i know why this disparity?
2. Barring other break ups, when i inquired about the dispa rity of the rto expenses of rs5494 and 3206, they could only give a hand writen receipt
Mentioning as rto & trade..
3. How come a trade tax is chargeable to a consumer. If so, why they are not providing me with proper receipts.

Please look into the matter immediately, otherwise i will be constrained to move to the consumer court making your company a witness to it.