Actor Rahul Bose announced it on his Twitter page saying: "Massive congratulations to Konkona and Ranvir! A boy it is. With those genes, the dynasty is secure."
Tennis ace Mahesh Bhupathi and actor Vivek Oberoi also congratulated the couple.
The couple, who were seeing each other for three years, got married last year in a private ceremony at their Goregaon residence in Mumbai.