Dear,

Seats are higher for sa and sx than sb. If you are from general category it is up to 250 rank in both sa and sx . And for sb you have to be in top 3. Are you st then just qualify in case of sa and sx. Now for obc also you are going to have great advantage in case of sa and sx, but in case of sb you have to be in top 8 .Now it all boils to the fact that if you are a sa and sx scholar then don't worry too much but if you are a SB scholar you have to struggle a little.

Hope this helps!