At this point of time chinees wont rise a concern.As the gestation period for nuclear reactors to go critical is long.Chinees course of action will be to neutralise this advantage gained by india, by giving some readymade nuclear technology to Pakistan .This is actually very interesting situation a sort of dyanmic equlibrium between the major powers of the world, namely USA, RUSSIA, JAPAN,CHINA, INDIA any advantage gained by CHINA wiil be nullified by USA either by helping INDIA or JAPAN and CHINA helping PAKISTAN or BANGLADESH(non nuclear technology)to encircle INDIA,providing support NORTH KOREA to encircle JAPAN.In coming years there will will be lot of chneges will be seen as the code of NSG has to changed, let us wait, watch n take corrective action.