@anant.del: If he's living in a BSNL service area (eg not Mumbai or Delhi), he can't get MTNL.
@topweb: Airtel's contention ratio has historically been pretty decent - as I recall at the moment though it's MTNL at 1:14, Airtel at 1:17 then BSNL at 1:22 though some of those numbers may be out of date - although in reality, contention ratio means different things for different ISPs depending on how the service is delivered.
Legally they can't publish information (such as contention ratio) to intentionally mislead customers: however this doesn't seem to stop them in their advertising. Even then, I'm not surprised that you don't get 2mbit/s to Speakeasy.net - your 2mbit/s connection is only 2mbit/s up to the ISP's Central Office (sometimes even closer than that).
Outside their network, there is contention and you will not necessarily get the speeds that are advertised on any plan (unless it's a dedicated/leased line plan for which you'd be paying upwards of Rs40k a month for) - much less to the USA, simply because that's not how bandwidth is aggregated. When you're doing speed tests to the USA, you're not only competing with users in India, you're competing with users in Bangladesh, Singapore, Malaysia, Thailand, Hong Kong, Japan, China, Indonesia, the Philippines, Taiwan, Australia, New Zealand and of course, the USA itself: the bottleneck for you being either Singapore or Hong Kong (depending on the route the traffic takes).
My experiences in NZ at the moment are similar: My line gives me full-speed
ADSL2+ speeds, but I'll get about 16mbit/s to Auckland, 12 to Australia and about 6 to the USA. My torrents come in usually at up to 12mbit/s, sometimes up to 15mbit/s (I've normally got a set speed limit of 1,400kbyte/s).
Youtube still does buffer for me fairly often (even on 320p), and I'm pinging youtube.com at around 290-295ms right now (although I'm in Wellington instead of in my
HomeTown right now), but ISPs are best to peer with
Google in order to take advantage of their CDN (I'm sure if I was using my ISPs
DNS, I might get better pings and/or less buffering, but I'm not a heavy youtuber so I don't care).
@Sunil: If anyone in India is positioned to give more than 1mbit/s service, it's Airtel. They have approximately 15Tbit/s of cable capacity available to them through at least 5 separate cable systems, which is enough to give all 1 million customers about 8mbit/s unlimited as in unlimited with no contention - EACH - and still have enough to sell to companies like mine - however, they have only lit a couple hundred Gbit/s because that's all that is "necessary": they are required to light more capacity up as the usage approaches 80 or 90%.