The "Paa" actor took to Twitter, where he showed his support for the children from the "slums".
"Moments with the 'Dharavi Rock Band'... Scintillating experience... RJ Malishka and organisers, well done!! Kids from band of Dharavi, arguably world's largest slum, were all 'rag pickers'... Music changed them all," Bachchan tweeted on Tuesday.