Megastar Amitabh Bachchan, who is gearing up for the Global Citizen Festival India (GCFI), has urged everyone to support poverty eradication.

The 74-year-old on Friday shared a photograph of himself shaking hands with the British band Coldplay's frontman Chris Martin.

"The Global Citizen Concert tomorrow (Saturday)...Coldplay and Jay Z and many others. Come support poverty eradication," Amitabh captioned the image, which he shared on Twitter and his official blog.

T 2446 - The Global Citizen Concert tomorrow .. at BKC, and COLDPLAY and JAY z and many others .. COME support poverty eradication pic.twitter.com/zVxEjkBWg6

— Amitabh Bachchan (@SrBachchan) November 18, 2016

Amitabh also shared that he got to know about Martin "more intimately when I heard his song that he sings along on the streets of London or England or somewhere, in a video .. and now this".

"This concert being performed for the eradication of poverty in our universe, and for the well-being of the poor! A sense of pride envelops us as we speak about the venture and why not," he wrote on his blog.

The cine-icon also posted some photographs of himself rehearsing for the festival, which is set to take place at the MMRDA grounds here on Saturday. The fest is focused on creating an impact in areas of education, equality, and clean water and sanitation.

"Rehearsals...always a mess, but somehow on the day all seems to work out and I do hope it does. The cause is great and noble and worthy," he wrote.

Apart from Coldplay, GCFI will feature international artistes like the band The Vamps, Jay Z and Demi Lovato.

Among Indian celebrities names like A.R. Rahman, Shah Rukh Khan, Freida Pinto, Alia Bhatt, Ranveer Singh, Katrina Kaif, Sonakshi Sinha, Parineeti Chopra, Monali Thakur and Arijit Singh will be present at the gala.