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Can you download and attach the prospectus for review/reference here? (i expect the clarification/details to be available in the prospectus)
In India Perpetual is a class and most of them have a Call Option. The Bond usually is called on that day and matures early. I haven’t seen a bond truly being Perpetual in India. Most Bonds are from Banks and NBFC but there are Non-Financial Companies also which have Perps!
AT-1 are issued by banks. This is NBFC.
Pretty common for perpetual bonds to have a call date. That way it is perpetual if issuer wants it or redeemable at defined interval.