▁sides ▁involved ▁in ▁this ▁project ▁are ▁invest ing ▁a ▁lot ▁into ▁it , ▁and ▁on ▁equal ▁terms ." ▁Russia ▁later ▁admitted ▁to ▁huge ▁del ays ▁and ▁cost ▁over run s ▁in ▁the ▁project . ▁The ▁first ▁prototype ▁delivery ▁has ▁been ▁delayed ▁by ▁one ▁or ▁two ▁years . ▁The ▁contract ▁has ▁not ▁be ▁final ised , ▁and ▁the ▁I AF ▁has ▁accused ▁H AL ▁of ▁giving ▁away ▁up ▁to ▁half ▁of ▁India ' s ▁share ▁of ▁the ▁development ▁work . ▁ ▁India ▁cont ributes ▁ 1 5 % ▁of ▁the ▁research ▁and ▁development ▁work , ▁but ▁provides ▁half ▁the ▁cost . ▁ ▁India ▁has ▁" ra ised ▁questions ▁about ▁maintenance ▁issues , ▁the ▁engine , ▁ste alth ▁features , ▁weapon ▁carriage ▁system , ▁safety ▁and ▁reli ability ". ▁ ▁After ▁repeated ▁del ays ▁in ▁the ▁f ighter ' s ▁design ▁and ▁work share ▁arrang ements , ▁the ▁Indian ▁Def ence ▁Minister ▁Man oh ar ▁Par rik ar ▁said ▁in ▁January ▁ 2 0 1 5 , ▁" We ▁have ▁decided ▁to ▁fast - track ▁many ▁of ▁the ▁issues ." ▁ ▁The ▁H AL ▁is ▁to ▁receive ▁three ▁Russian ▁pro tot ypes , ▁one ▁per ▁year ▁from ▁ 2 0 1 5 ▁to ▁ 2 0 1 7 ▁for ▁evaluation . ▁ ▁On ▁ 9 ▁March ▁ 2 0 1 5 , ▁media ▁out lets ▁reported ▁that ▁the ▁countries ▁agreed ▁to ▁reduce ▁the ▁aircraft ▁delivery ▁time ▁from ▁ 9 2 ▁months ▁to ▁ 3 6 ▁months ▁with ▁the ▁signing ▁of ▁the ▁final ▁agreement . ▁India