Ahead of Ranbir Kapoor and Alia Bhatt's wedding on Baisakhi, megastar Amitabh Bachchan extended his heartfelt wishes to the couple.

Taking to Instagram, Big B, on Wednesday, shared a video of Ranbir-Alia's love song 'Kesariya' from their upcoming film 'Brahmastra'. Alongside the clip, Amitabh wrote, "Wishing our Isha and Shiva all the Love, Luck and Light as they gear up to embark on a very special journey in the coming days. Let's kickstart the celebration with something special from Team Brahmastra."