i am purchase of material out of Maharashtra Net Amount Rs - 100000 /- CST Amount Rs 2% 2000/- Total OMS Rs - 102000/- Same quieter i am sales of the material out of Maharashtra Net Amount Rs - 50000 /- CST Amount Rs 2% 1000/- Total OMS Rs - 51000/- in this case how many set off available Plz sagest to me.