Tatkal quota seats

sir, i want to know how many tatkal seats are available for tirupati to salem in sabari express.if i check there r 273 seats for hyderabad to trivandrum but for tirupati to salem there r 285 seats,i am little bit confused, can any one clarify and help me?

##Please look at this:
-----------
7230 SABARI EXP 29-4-2010 HYDERABAD DECAN KATPADI JN TATKAL
S.No. Date (DD-MM-YYYY) Class - SL Class -3A
1 29- 4-2010 Charting Done Charting Done
2 30- 4-2010 WL 109/WL 74 WL 41/WL 24
3 1- 5-2010 WL 114/WL 98 WL 33/WL 32
4 2- 5-2010 AVAILABLE 273 AVAILABLE 32
5 3- 5-2010 AVAILABLE 273 AVAILABLE 32
6 4- 5-2010 AVAILABLE 273 AVAILABLE 32
.............................. ................
7230 SABARI EXP 29-4-2010 NADIKODE TRIVANDRUM CNTL TATKAL
S.No. Date (DD-MM-YYYY) Class - SL Class -3A
1 29- 4-2010 Charting Done Charting Done
2 30- 4-2010 WL 109/WL 74 WL 41/WL 24
3 1- 5-2010 WL 114/WL 98 WL 33/WL 32
4 2- 5-2010 AVAILABLE 273 AVAILABLE 32
5 3- 5-2010 AVAILABLE 273 AVAILABLE 32
6 4- 5-2010 AVAILABLE 273 AVAILABLE 32
............................
7230 SABARI EXP 30-4-2010 TIRUPATI TRIVANDRUM CNTL TATKAL
S.No. Date (DD-MM-YYYY) Class - SL Class -3A
1 30- 4-2010 Charting Done Charting Done
2 1- 5-2010 REGRET/WL 13 REGRET/WL 1
3 2- 5-2010 REGRET/WL 13 REGRET/WL 1
4 3- 5-2010 AVAILABLE 285 AVAILABLE 32
5 4- 5-2010 AVAILABLE 285 AVAILABLE 32
6 5- 5-2010 AVAILABLE 285 AVAILABLE 32
.............................. ........
7230 SABARI EXP 30-4-2010 TIRUPATI SALEM JN TATKAL
S.No. Date (DD-MM-YYYY) Class - SL Class -3A
1 30- 4-2010 Charting Done Charting Done
2 1- 5-2010 REGRET/WL 13 REGRET/WL 1
3 2- 5-2010 REGRET/WL 13 REGRET/WL 1
4 3- 5-2010 AVAILABLE 285 AVAILABLE 32
5 4- 5-2010 AVAILABLE 285 AVAILABLE 32
6 5- 5-2010 AVAILABLE 285 AVAILABLE 32
.............................. .........

##Please note that the GNT-TVC Tatkal Quota of 12 Berths is included in this 285.

##But once the GNT-TVC Quota gets exhausted, the passengers covered in this limited quota are placed in a separate Tatkal Waiting List which will also hit the REGRET Status, as may be seen from the above data.

##Moreover, the Tatkal Booking is day/date sensitive. The Tatkal Quota for 1st May has opened today ex.Hyderabad/Guntur, whereas the same train passes through TPTY on 2nd, for which date the Tatkal opens on 30th.

##So, by the time the Passengers get the eligibility to book the Tatkal Tickets, the status would have gone into Hyderabad-based Tatkal based Waiting List (OR) Guntur-based Tatkal Waiting List.