I defended my thesis last year and was granted MS degree. After that my advisor pressurized me to work more with him and write papers. I refused after some time and my relationship with him became sour. Can this cause any problem in the future such as thesis being taken away. Note that there is no dishonesty in my thesis at all, but there are some weak areas.
Once a degree has been conferred, it is exceedingly difficult to retract at without clear evidence of misconduct. Having a souring of relations with your advisor definitely does not rise to the level where you should have to worry about your degree being revoked. It is definitely worth mending your relationship with your former advisor just on professional grounds, but the "safety" of your degree shouldn't be one of them.
As Aeismail already said, you would have to have commited some serious misconduct for your degree to be revoked (at least in any reasonable academic and legal system). And even then, the proceedings for doing so will cost your supervisor quite some time and effort.
Most importantly, however, it’s almost impossible for your supervisor to revoke your thesis without shooting himself in the foot:
- If there is any lack of quality in your thesis, the reviewers should have noticed. And the main reviewer usually is your supervisor.
- Misconducts that are not directly obvious from the finished thesis such as plagiarism, rigged data or employing a ghostwriter are much more difficult to perform under proper supervision. Thus making a corresponding accusation against you will almost certainly lead to allegations of improper supervision against your supervisor.
- Revoking your thesis causes some noise that also reaches potential future students of your supervisor, moreover if you stir that noise up and have good arguments against the revocation. These students will think twice about choosing your supervisor as a supervisor, which will almost certainly not make up for the damage of a few papers not written by you. It may very well destroy his workgroup.
Finally, these points would also apply to a second reviewer to some extent, which gives that person good reasons to work against allegations against your thesis.