battery box assly for 3 phase locomotives as per clw specn no clw ms 3 037 alt 8 or latest and clw drg no 1209 06 138 001 alt 8 or latest and 1209 06 138 003 alt 3 or latest abb drg no ia 061 00154 or latest with modified hanger for battery box as per rdso drg no skel 4666 or latest warranty period 30 mon ths after the date of delivery quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs