Hi,
Thanks for the replies. There were no errors on the console related to playmaker. But there was one setting.dll error related to TextMeshPro. I deleted the duplicate settings.dll from the library folder. After this I got a bunch of other errors related to other plugins which I resolved one by one, either by reinstalling those plugins. One all those errors got resolved, I re-installed playmaker and the patch present in the hutong games site. Once I completed this step, I got the playmaker option in the menu. Everything is working fine now.
Regards,
Siloni