One thing that is disturbing is focus has shifted from MCD to coaching institutes, not giving them clean chit but state of Urban infrastructure and civic amenities is in rumbles across length and breadth of the country. This has to be taken care of. It is a time taking process but it has to begin somewhere.
Regarding over congestion of Karol Bagh, ORN etc. the only feasible solution is to move out. That has to be done with a consensus between civic authorities and coaching institutes. It can solve the problem of accommodation as well if planned accordingly. DDA/MCD along with institutes should look for alternative land where this can be done.
Decentralization of centers has to be there, one way can be live streaming of few classes from Delhi centre and few offline classes where teacher is present at regional centre(if availability of teacher is an issue). For this a shift in attitude is required, it will happen gradually.