A full court bench of the Apex Court held as follows, with respect to When should a Prosecution for perjury be ordered .

The prosecution for perjury should be sanctioned by courts, only in those cases where the perjury appears to be deliberate and conscious and the conviction is reasonably probable or likely. No doubt giving of false evidence and filing false affidavit is an evil which must be effectively curbed with a strong hand but to start prosecution for perjury too readily and too frequently with,out due care and caution and on inconclusive and doubtful material defeats its very purpose. Prosecution should be ordered when it is considered expedient in the interests of justice to punish the delinquent and not merely because there is some inaccuracy in the statement which may be innocent or immaterial. There must be prima facie case of deliberate falsehood on a matter ,of substance and the court should be satisfied that there is reasonable foundation for the charge.

Citations: [1971] SUPP. 1 S.C.R. 172], [1971 INSC 89], [1971 SCC (1) 774], [1971 AIR 1367], [(1971) 03 SC CK 0045], [(1971) 2 ALT 277], [(1971) CriLJ 1096], [(1971) SCC(Cri) 331]

Other Sources:

https://indiankanoon.org/doc/187090/

https://www.casemine.com/judgement/in/5609ab75e4b014971140c8b3

https://www.courtkutchehry.com/judgements/646903/chajoo-ram-appellant-hash-radhey-shyam-and-another-respondent/

https://www.legalstreet.in/ratio/case/1971-insc-89/

https://www.legitquest.com/case/chajoo-ram-v-radhey-shyam-anr/3C67

Index of Perjury Judgments is here.