Important Links and Details : 

SEBI takes up complaints related to issue and transfer of securities and non-payment of dividend with listed companies. In addition, SEBI also takes up complaints against the various intermediaries registered with it and related issues. 
SCORES facilitates you to lodge your complaint online with SEBI and subsequently view its status

New version site:https://scores.sebi.gov.in/

Old version site: https://scores.gov.in/scores/Welcome.html 



Steps to lodge a Complaint :