The 62-year-old legend took to Twitter to wish the actress-singer on her 30th birthday.
"Happy birthday Lady. Shruti. You've done well. Remember it is just the beginning. Love you... Bapu," wrote Kamal.
Shruti too took social media to wish herself birthday. She also thanked "my love" for a Vivienne Westwood luxury bag, Anglomania, of which she posted a photo too.
"Happy birthday to me - and Thankyou my love for reminding me to keep my feet on the ground and learning the value of flying - couldn't do it without you," Shruti wrote.
"Chennai calling #itsmybirthdayitsmybirthday #happyheart #celebrate #life #love #family #friends," captioned Shruti.
Shruti will star in "Behen Hogi Teri", alongside Rajkummar Rao this year.