You can submit your IT return on-line by following process.
1. GO TO https://incometaxindiaefiling.gov.in/portal/index.jsp
2. REGISTER AND CREATE USER (USERNAME AS YOUR PAN NO)
3. GO TO https://incometaxindiaefiling.gov.in/portal/individual_huf.do
4. DOWNLOAD ITR-1
5. FILL THE FORM
6. CHECK THE FORM
7. GENERATE BARCODE
8. GENERATE XLS AND SAVE ON YOUR SYSTEM
9. GO TO https://incometaxindiaefiling.gov.in/portal/login.do AND LOGIN AGAIN
10. CLICK ON SUBMIT RETURN.
11. UPLOAD XLS FILE.
12. CLICK ON UPLOAD.
Congratulations: YOU HAVE SUBMITTED YOUR RETURN.
YOU CAN ALSO CHECK YOUR refund STATUS IF ANY.