Kushal, what version of Tableau Server are you using? There was a change made as of 2018.2 that I actually need to figure out myself. My company tried going to 2018.2 but the configurations weren't working so we downgraded back down to 2018.1.
We went 3rd party for something similar, VMWare WorkSpaceOne provides a link mechanism back to your AD system. This worked very well with our Tableau integration.
More recently we landed on Centrify as we needed to expand the applications using the same link back. Not sure this would be helpful in your scenario or if a 3rd party tool
fits into your architecture.
hope that helps a tad,
Version we are using is 2018.2.2 on windows server 2016
can you provide me some kind of information or link related to this so that i can go through.
thank you in advance