I really dont see the reason of constructing the route, its just parallel to the Pune local trains route. Also there is huge national highway parallel to this route. I think people hardly takes this metro even its finished.
They should keep more focus on Katraj, Hinjewadi routes. Still for a city like Pune metro may not be that suitable. Wide roads, very less traffic jams except some parts of City. Also very planned BRTS makes Pune to commute easily by road when compare to many cities in india.
Better...
more... if they can evaluate chennai fly over suburban model ( Velachery route), its best suited for Pune as its having chill climate most of the year.