The train can still reach destination Mumbai in evening at reduced departure time from Pune i.e 18-40 hrs from Pune to Mumbai instead of 17-55 presently. For this, the Intercity express needs to be run along the old train route from Monkey hill to Khopali ( this will avoid zig zag curves present -if train is taken on different route from Monkey Hill to Khopoli).
Still if train is diverted from Khopoli to Mumbai vai -Khopoli-Panvel section, many New Mumbai traveller s can tae advantage- Also train will be non stop...
more... till Panvel from Lonavla as Karjat-Panvel section is empty.
Railway please consider this suggestion.