Several Bollywood stars, including Amitabh Bachchan and Aamir Khan, have become part of a unique initiative where celebrities and over 2,000 volunteers are set to form a human chain to raise their voice against terrorism on Aug. 15.

In addition to Amitabh and Aamir, siblings Saif Ali Khan and Soha Ali Khan have also committed their support to a signature campaign on "Harmony vs Terrorism" launched in Mumbai by the Citizen’s Council for a Better Tomorrow.

The five-kilometre human chain will take place on India’s Independence Day, starting in the business district of Nariman Point.