OnePlus One is definitely doing the correct thing any manufacturer should do by enabling the users to get their serviced locally even if they bought it from Oneplus.net . Generally manufacturers don’t offer international warranty except Apple hence OnePlus One has earned the respect for taking care of consumers first.
OnePlus One will service handsets in Indian service centers for free but the one year warranty will be applicable only on devices purchased via official website and not from China. This is because there’s a difference in hardware from Global and Chinese variant and OnePlus will sell global variant in India.
With this announcements we can safely say that official launch is not far away and if you cannot wait then go ahead and buy OnePlus One today as they are up for pre-order and you will be getting warranty too this time.