Karjat-Pune Shuttle has scheduled overtake by 11041 CSTM-MAS Exp at Chinchwad. 11041 MAS Exp has commercial halt at Khadki. And between Khadki and Chinchwad, there are no stations with extra lines (for overtake). Hence, till the time MAS Exp overtakes KJT-Pune Shuttle, the train is always held up at CCH only!