Once upon a time, there was a great king called Vikramaditya - the WAM-4 - Shashank

A Scenario for Knowledge base and Info for all.
Suppose i want to travel from Howrah to Bangalore and i would like to travel via Chennai.
I booked a Ticket from Howrah to SBC with Reservation upto MAS on 2841 on Friday from Howrah which consists of the First leg of the Journey.
For Onward Journey i have the option to travel on 2657,6222...
more...

and 2292 the journey day being Saturday.I see only Confirmed Berths are available ONLY in 2292 and opt to book the same from MAS to YPR.
MY QUESTION IS:
1)WILL I be Able to book from MAS to YPR as part of the Onward journey ticket.(PLs mind that i already have ticket booked from Howrah to SBC and had reservation till MAS in the First leg of the Journey).
The Distance from MAS - SBC is 362 kms while from MAS- YPR is 370 kms.
That means though i have been charged to book till SBC, i am booking an EXTRA of 8 kms by opting for YPR which i may not have paid earlier.
AnyBody can Crack the Answer????