On Monday, the 39-year-old actor revealed that his son had been born last week and had been named Laksshya.
Tweets celebrating both the new arrival and Tusshar's courage followed soon after.
Congratulatory messages were sent by filmmakers Karan Johar and Farah Khan, and actor Abhishek Bachchan. Tusshar's Kyaa Super Kool Hain Hum co-star Riteish Deshmukh, who welcomed his second child earlier this month, sent the newborn blessings.
Am so thrilled to hear this news @TusshKapoor ...huge congratulations and all my love.....bless the family with the best years ahead....? Karan Johar (@karanjohar) June 27, 2016
Congratulations Tushki! @TusshKapoor welcome to the best years of your life. You're going to make a superb dad. Lots of love.? Abhishek Bachchan (@juniorbachchan) June 27, 2016
Congratulations my dearest @TusshKapoor -couldn't be more thrilled. Welcome to the world of parenting. love & blessings to the new born.? Riteish Deshmukh (@Riteishd) June 27, 2016
Congratulations @TusshKapoor on becoming a father.. Not everyone has your courage..god bless ur lil Angel.? Farah Khan (@TheFarahKhan) June 27, 2016
In an interview, Tusshar Kapoor told news agency IANS: "I am thrilled to be a father. The paternal instincts in me have been overpowering my heart and mind for some time now. Therefore, I am thrilled beyond words to have Laksshya, now the greatest source of joy in my life."
"By the greatness of god and the excellent medical team at Jaslok (hospital), parenthood is an option for many, who choose to be single parents," Tusshar added.
Tusshar Kapoor, son of veteran actor Jeetendra, made his debut in Bollywood with 2001 film Mujhe Kucch Kehna Hai. Now 39, Tusshar has starred in films like Kucch To Hai, Kyaa Kool Hai Hum, Golmaal 3 and Shootout at Wadala. He was last seen in Mastizaade.