Selling/Purchasing a T-Bill on the Maturity Date

What happens if a T-Bill is traded on the secondary market (eg.BSE) on the exact date it matures ?

For example, i see that
some units of 91TB011222 were bought/sold on BSE today 01-DEC-2022, i.e. the date The T-Bill matures.

Who receives the payment due upon maturity - Today’s buyer or today’s seller?
When would they receive the payment?

Generally, couple of days prior to the maturity-date,

However, the above above security (91TB011222) appears to have been allowed to be traded on the maturity date (01-DEC-2022) and there have NOT been any circulars issued either.

Anything special about this T-Bill? :thinking: