Had this issue in alto vxr couple of years back. It kept jerking for weeks and mechanic didn't fix it. Later I found, Pressure plate of khyber was used by mechanic. Next time i used a kabli pressure plate and new clutch plate. Clutch was very smooth immediate after installation.
My advice is to get it opened asap. And get the pressure/clutch plate checked on machine.
Coz mechanic would say "sir ab ye tu use hugai hai" if u do after a week.