Guess who is Allu Arjun's most favourite baby in the world? It's actor Allu Sirish, his younger brother. Marking the 'ABCD' actor's birthday on Saturday, Bunny took to Twitter to wish him a happy birthday.

"Many Many Happy Returns of the day Siriiiii. You will always be my most favourite baby in the world," said the 'Ala Vaikunthapurramuloo' actor, inserting a 'face throwing a kiss' emoji in his message.

The other day, it was Brothers Day, on which Sirish made it a point to put out a pic of himself, Bunny and Allu Bobby. "Happy Brother's Day! It's a blessing to have brothers like you two. #BrothersDay," the 'Okka Kshanam' actor wrote on Twitter. In fact, shedding his reticence, Bobby shared a few pics on his Instagram page, on the occasion.

The three brothers visibly share a great bond. Isn't it?

Many Many Happy Returns of the day Siriiiii ?? . You will always be my most favourite baby in the world ❤️ @allusirish #HBHAlluSirish pic.twitter.com/zKZ55C0wa0

— Allu Arjun (@alluarjun) May 30, 2020