Assuming you are in India and your parents are living in the address mentioned on your passport (Say B) and you are currently living at city A.
1. go to city B, apply for PCC at local passport office. or just apply online and go there on the appointment date
2. After that Go to the police station near to you house in city B and ask about the officer who works in PCC and other passport matters.
3. Tell him you situation and request him, He will ask for some monies... so pay him or get letters from City B MLA or MP, whatever you prefer.
4. All done. But you have to be in City B for sometime, say for a week or so..
You were in SINP group so did you got your nomination..