Are there any exceptions or limitations mentioned in this passage regarding the power of Parliament and other authorities to regulate service conditions?
Yes, there are exceptions or limitations mentioned in this passage regarding the power of Parliament and other authorities to regulate service conditions. In the case of certain individuals such as the Chief Justice, judges, CAG, UPSC, and Election Commissioner, their service conditions cannot be varied or revoked after appointment except under specified circumstances (sub-clause (a) and (b) in clause 1). Additionally, this power of Parliament does not extend to affecting any Legislature's ability to regulate service conditions under other provisions of the Constitution. Furthermore, certain disputes are excluded from the jurisdiction of courts as per clause 3.