Bollywood megastar Amitabh Bachchan has expressed concern for Jaipur's erstwhile royal Gayatri Devi's health and has wished her a speedy recovery.

The 90-year-old was admitted Friday to a hospital in Jaipur after she complained of stomach ache.

"The day ends with some concern for Maharani Gayatri Devi of Jaipur. She is quite unwell and has been admitted to hospital. One of the most beautiful women in the world, a friend, a gentle and generous host to me on several of my trips to her beautiful palaces, now caught up with age. My prayers for a speedy recovery, " Amitabh wrote on his blog.

Big B, who is in Singapore attending to his ailing friend, politician Amar Singh, was also recently admitted to a Mumbai hospital after he complained of stomach ache.