And That is what I like about TDF!
I said I don't like Spiders. And despite the fact that I gave a good chance to troll myself, you guys actually acknowledged the fact that I don't like spiders, but rather tried to help me!
Anyway, so I disabled images using Opera, downloaded the appropriate driver for v2 and upgraded the firmware. I struggled a lot initially to setup APN for example, but Google helped there and when I was just about to give up the dongle worked. And now I am surfing internet through the updated driver.
I have to say, maybe the features are a lot in this firmware, but UI is far more complicated and non noob friendly. But I figured my way to it.
Also, I don't think my purpose solved by upgrading the firmware. I upgraded firmware so that I can send message through the UI to know the remaining 3G balance. But I later realized I know only the USSD code to know the balance. And there doesn't seem to be an option to send USSD code though the UI of router. And I don't seem to find any way to know the balance through SMS of MTNL 3G.
Well, a bummer.