A fair advice, just hang up with Reliance. The decision shouldn't be very complex. I will suggest you switch the provider, better go for TATA's, they don't shout at least for providing you better services, they just do it. I couldn't stay with reliance for even 2 months and i disconnected the service. They have given me a lot of pain on the name of service. I am fine with Photon+. Haven't really got any issue so far. I also stay at Wakad. The average speed that I get is about 1.3Mbps(1300kbps) during day. Browsing is always fine, and download rate is also good. When I download heavy stuff like any free software etc, means when we put load on network, the speed I normally get is 2.4-2.6Mbps.
Another suggestion, if your usage is high, go for adsl/dsl connection, it will cost you less. But this option is not good if you travel a lot. But if you just check mails, use EDGE connection of your GSM service provider. With EDGE browsing is fine and the speed is up to 230-240kbps(I have Nokia 5130 and use Airtel).
Dont forget, RELIANCE ALWAYS SUCKS
There is no redressal system for the consumer complaints. No-one at Reliance even bothers to take care of customers. They are GOOD IN SELLING ONLY BUT NOT IN PROVIDING SERVICE. You just purchase their datacard and that is all for them.
There is one proof for this: You have posted your complaint here instead of contacting Reliance. Another is your screenshot that shows its not even better than what you get through GPRS on your mobile.