Tax payable after quick e-file itr-1

Hi,

After quick e-filing itr-1, i came to realise that there is tax payable amount of 8600/- in ITR-5 form.I have switched job in the same financial yr and my whole income is from salary. Going through the CAClubIndia forums i got to know that i have to pay self assessment tax using challan No/ITNS 280 with tax applicable-21. What should i do?

Should i file revised return -139(5) using the quick e-file with the same details and add self assessment tax paid in column provided and which ITR-5 form should i send to Income Tax department?

I have one more question- After paying due tax what option should i select for revised return-139(5) - Tax Payable or Nil tax . Is there any step i am missing? Please guide me.

Thanks