As of now People of Pune dread taking Shatabdi because of its early departure at 5 am
Even if this train starts reaching Secunderabad at 12 pm there won't be much takers of this train from Pune for the same reason.
A 4 pm Departure from Udhna, 8 pm Departure from Vasai Road and a 11pm departure from Pune, reaching Secunderabad at 8 am or 9 am would be prefect for this train