Yes, finally it's happening.-B-town's Bachchans are going to celebrate! The gorgeous Bachchan Bahu (Daughter-in-law) Aishwarya Rai Bachchan is reported to be pregnant. And the news was shared by none other than the diva�s father-in-law and mega star Amitabh Bachchan.

Quoted Big B on his micro-blogging site, "I am going to be a grandfather soon. Aishwarya is expecting. Thrilled and happy."

The moment this good news hit the media, congratulatory wishes started pouring from celebrities on Twitter -

Priyanka Chopra - CONGRATS SIR @SrBachchan and @juniorbachchan ..awesome news!! lets make way for the legacy to go forward......

Genelia D'souza - @juniorbachchan congratulations ab,, super super happy 4 Aish n u,, one things 4sure d kid vl b one hell of a good lookin kid :) congrats agn

Madhavan - @SrBachchan ohhh.. Sooooo Happy for you sir.. The legend continues..Love to the whole family.

Eesha Koppikar - @SrBachchan Congratulatons Sir.Dats really awesome news.God Bless

Dia Mirza - @SrBachchan Congratulations!!! Wonderful wonderful news

Rana Daggubati - @juniorbachchan is soon to be Daddy Bachchan. Congrats and lots of love.

Seeing all these several text love, the ever humble Amitabh was quite elated and tweeted back - "Overwhelmed with your wishes and blessings... 2843 new tweets in half an hour! Thank you all ! Your affection and love is so touching".

Abhishek and Aishwarya got married on 20 April 2007. And since then they had been centre of attraction, adding fodder for rumours of becoming parents.

Aishwarya currently has Madhur Bhandarkar's favourite project 'Heroine' in her kitty.

KollyInsider's warm and hearty congratulations to the most happening couple of Bollywood... All The Best, Abhishek and Aishwarya!

 Come on, post your wishes here below....