UTI — uti, unit scheme, 1964 (clause 11) and growing income unit scheme 1989 (ii) redemption

My father have totally 3 diff. Uti bond _ uti, unit scheme, 1964 (Clause 11) : 40, 100 units
_ growing income unit scheme 1989 (Ii) (Clause xii)

For redemption, my father was personally visiting uti office at aasharam road, ahmedabad, gujarat. But not getting solutions and proper answer. Also providing customer care number which is not connected till now.

Why you not providing redemption service online or at home for senior citizens?

My humble request to uti authority to look into the matter and resolve it.