If you live in the United Kingdom, please ask your MP to sign the below Early Day Motion in Parliament on Vedanta plc.
See http://edmi.parliament.uk/EDMi/EDMDetails.aspx?EDMID=39761&SESSION=903.
Please contact them in whichever way you think is best. For example, you can use free web services like-
http://www.writetothem.com/ which will take a minute to complete. You can paste in the EDM contents, together with number, signatories/any other information. Other ways of getting in touch with MPs may be more effective. Whichever way you choose, please ask your MP to sign the EDM in parliament and ask others to send this to their MPs too!