Sir, there are two types. One is TVS Girling and other is Kalyani AKA KBX.
You would either need to confirm the typ, post which I can help you with the part number or take one of your break liners to the local spare shop and they would be able to give you a right one. Note - KBX and TVS both manufacture these liners. I have used KBX on my 800 and Zen. Brilliant change is braking. If your setup is yet to be opened, please clean any dust / debris - Check cylinders and do a bleed post installation. Happy DIYING.