Defamation case under ipc section 107

case is closed without court and FIR proceedings

Section 107 is a substantive provision which defines Abetment. The sections which follow it lay down punishments to be inflicted for causing abetment. The principle of shared responsibilty is applicable in the cases of abetment where abettor is equally liable for the acts of person abetted. This has been expressed in following provisions of IPC which makes it clear that should the degree of crime done by the person abetted is equal to the intented level of abettor, the latter too has same liability. Hence u/s 109 of the Code, the abettor is equally liable for the act done by the person abetted. This implies that if a person abetted commits a theft and is punished with 6 months SI, the Abettor too shall be imprisoned for 6 months. The rule is not applicable in such crimes where separate provisions are made to differently punish abettor and person abetted.
Only, in cases where intention or knowledge did not meet or act was done in a different manner than intended will attract the differentiated liability.
Further, u/s 115 if act abetted was punishable with death or LI but was not done then abettor shall be punished with imprisonment extending to 7 years and fine and if such act causes harm then abettor can go undergo imprionment extending 14 years and fine.
Lastly, u/s 116 if an act abetted is punishable with imprisonment but not commited, in such case abettor is liable for the maximum of 1/4 of the maximum term provided for such offence.

I want to know whether I am eligible for upsc or not, will it hinder me during background check??

Prima facie, I am of the personal view that as the issue is closed without any FIR, it may not come in your way of UPSC. You may seriously pursue the same. Best wishes.

thank you sir for your response @AA JOSE @ RAMA CHARY RANCHAKONDA .it's been a great relief.

please be rest assured you are not under criminal jurisdiction