How to replace Battery in Pulsar NS 200 and Pulsar Rs 200

Replace battery in Pulsar NS 200, Pulsar NS 160, Pulsar NS 125, Pulsar RS 200 and Pulsar AS 200/150.This is the battery I installed Exide Xplorer XLTZ9. 48 month warranty. 0-24 month free of cost replacement. New battery price 1900 rupees. Replace old battery discount 300 rupees.I had to pay for the battery 1600 rupees.