Nayanthara and Vignesh Shivan celebrated their twins, Uyir and Ulagam`s first birthday on September 26. They were born to the couple via surrogacy last year. On Tuesday, the doting daddy shared multiple pictures with the actress and his sons on Instagram. 

Penning a special wish for Uyir and Ulagam, Vignesh wrote, "My TwinPowers. HBD to U2! 1 year of smiles, happiness and blessings! Happy birthday to my loving #Uyir & #Ulag! May you both Stand Tall in this life bringing a lot of happiness to everyone around you! Love you my babies! You have made our life soooooo sparkling & colorful! It’s a festival every day! With U2! My Uyir & my Ulag @nayanthara Amma & Appa love you 2! Toooooo much. Wanted to celebrate Ur first birthday near these Tall powerful Towers who are twins jus like U2 thanking God for making it happen sooo nicely! Blessed as always."