The actor shared the news on Twitter
Had the honor and privilege of meeting our great PM Shri.Narendra Modi. What a humble man, that's what sets him apart.? Mohan Babu M (@themohanbabu) April 21, 2015
Mohan Babu was accompanied by his sons Vishnu, Manoj and actress daughter Lakshmi Manchu.
"The family had visited Modi ji to invite him for the wedding of Manoj. Modi ji happily accepted the invitation and was fascinated by its design and art work. The card was designed by renowned painter Ramesh Gurazada," a source close to Manchu family told IANS.
"PM Modi, who was really touched by the family's gesture to invite him, said that he would try to attend the wedding if it doesn't clash with his China trip," the source added.
Manoj, a popular Telugu actor, will marry Pranathi in Hyderabad on May 20.
The Manchu family clicked selfies with Mr Modi and shared them on social media.