Gdr3 release date for Lumia 720(India) ??

Why they r making it so late ?? Its out on 1020 . Then why not others also. Msft said that gdr3 is in testing at nokia India from last two months. Its enough time. Are they still playing with crackers??
 
My lumia 925's battery is draining so quickly. And i am waiting for black update eagerly. Hope it comes soon.