Salaried employee whether self assessment tax can be paid

ya you can but you have to pay interest u/s 234C and 234 B 

You have not mentioned the Assessment Year. Hope it will be A.Y. 2012-13. If i am right you just deposit the balance tax by fillingup 280 challan and submit the return. If you submit the tax before 30/07/2012 you do not need to submit any interest u/s. 234A or 234B or 234C.