Sir I purchased battery for my laptop Dell Vostro 3560. It's no is KR 0T54FJ 89072 9C5 E1UT A00. KINDLY TELL ME WHETHET IT IS GENUIN OR NOT
Impossible to tell from that - if it came from Dell, it's genuine. If not, ask the seller.
If it cost less than $80-100 or so, it's not an OEM battery. Further, that date code (9C5) indicates it was made in 2009 -- meaning if it is genuine, it is not brand new.