^ ^ ^
Galaxy S2 is available in the range of 25-26K online. Don't see any GREAT deal with a much lower price than that.
Don't know whether you're aware or not but Samsung isn't selling the Galaxy S2 with ORIGINAL specs in india since many months. It has kept the model number on the box same, i.e., Samsung galaxy s2 i9100 but the internal is different from the original Galaxy S2. The current model comes with TI OMAP SOC instead of the original Exynos SOC. The graphics chip is also different. The problem is Samsung never informed anyone formally and there is nothing on the box to separate the two model.
So what's different between the two models? Check these links to find out.
How Samsung Is Duping Its Customers By Selling The I9100G Variant Of The Galaxy S2 In I9100 Boxes In India
Samsung I9100 Galaxy S II vs Samsung I9100G Galaxy S II – know the differences
Samsung Galaxy S II i9100 vs i9100G: Differences in Processing Power
So if you need better performance and huge developer support then i would suggest you to go opt for the ORIGINAL spec S2.
However finding the right one now a days is difficult.
Few original spec S2 are on sale at Ebay but most are with dealer warranty.
If i were you, i will give Galaxy Nexus and some Jelly Bean Love to your brother instead of S2 at this point in time with the same cost.