Unit Trust Of India Mutual Fund [Utimf] — Mastershare Plus & UTI Mastergain 1992

My sister is holding the following Units in her name
Mastershare Plus Unit Scheme 1991- 500 Units
UTI Mastergain 1992 - 500 Units

Due to marriage her nationality is changed. The certificates are in Physical form.

need your guidance on how to proceed further for encashment of these units. If required and possible I can get the same trnsferred to my name

Regards