sorry, guys, didn't get the time to answer.
The 4200 price is 26.5 and the price for 3800 was 19K as mentioned by my vendor. I HAD a FX-57, sold it after i got my sandy. When i could overclock the 3700 to get the 3700 at 2.6 GHz , Afterall TE guys helped out with the mem..if you remember. but till now i still love my 3000 Venice.
As for the availability in Mumbai you will be able to get only the 4200 officially from AMD. They still haven't got 3800 for public. Thier first consignment was 4200 and so will thier second one be..whic is expected on the 16th. so 18th on the streets most probably.
Another interesting development because of the X2 - the 3700 has been revised to 19.5K which is cheaper now, then the X2. But still unrealistic compared to international prices. Anyway, the 3700 still is the closest thing to an FX at 1/3rd the price. Another thing..once this lot of 3700 is over, it would not be available very easily.
As for the AMD office..I think a lot of people here have had thier fill of information. I will state mine. The first lot of AMD X2 processors expected were the 4000. It was when i told them it doesn't exist, they said, they will check and let me know.