OK, here's another update, lol. Called up the Del. GM today to ask him abt the new plans and tariffs. Told me that he'd left MTNL and moved to UP, hehe. But dropped a hint that MTNL's unlimited plans will cost more than Airtel's. So then i asked him staight up whether he could confirm this and predicatbly he said that since he wasn't with MTNL anymore, cudn't confirm and that i should call them up.So then, I called up the Marketing head and he said that though he didn't have the official information yet, said that there would be NO unlimited plans this time around but they have lowered their tariffs on some plans(entry level ones) and existing plans such as 590NU will have increased daytime usage limits eg. plans such as DSL399 will have 700MB usage limit as opposed to 350 earlier and the addnl usage cost will be lowered from Rs1.20 to 1.00. Said that he'll let me know if anythin official reaches him before closing hour today.