UPSC Revised Tie Principles for breaking the tie in all structured examinations. Candidates can check these here.

UPSC Tie Principle
UPSC Tie Principle

UPSC Revised Tie Principles for breaking the tie in (a) all structured examinations (b) Recommending the Candidates through Direct Recruitment by selection and (c) deciding the relative seniority of all the candidates coming from different disciplines of Engineering through Engineering Services Examination (ESE).

For Civil Service Examination if final marks of 2 or more candidates are same then marks candidates who score higher marks in common papers + PT marks will get higher rank and age factor will also play a role in deciding final ranking.

UPSC Revised Tie Principles pdf for All Examinations