V_S,
I don't think UMT storyline has any direct relevance to the "life-history" of Dr MSU.
It's basically the tussle between a dad & son in a musical family, IMO. (And the son's interest with a girl of different social status / family of different social ideas etc).
I'm not sure whether all of MSU's major philosophies got featured in Telugu (in the above setup). OTOH, UMT had them placed inside - motivational 'unnAl mudiyum' & pasumai to be specific. (I'm not very sure whether MSU is known for being vocal about "social equality" stuff, which gets more weightage in the movie, than "motivation / pasumai" stuff).