Big B thanks Modi for acknowledging contribution

Modi on Sunday shared an audio file on Twitter, where he is heard reciting a poem by Amitabh. 

"A special message from Amitabh Bachchan on Swachh Bharat," Modi tweeted. 

The 74-year-old actor re-tweeted to thank Modi. 

"My most gracious and respectful thanks to the honourable Prime Minister Mananiya Shri Narendra Modi-ji, for acknowledging my small contribution," Big B tweeted.