A handwritten letter from Amitabh Bachchan praising Nimrat Kaur has resurfaced amid rumours of her linkup with her 'Dasvi' co-star Abhishek Bachchan. "We've hardly had any interactions or meetings...But your work in Dasvi is exceptional- nuances, gestures, all! My deep admiration and congratulations," read the note. Reports have recently suggested Abhishek and Aishwarya are headed for separation.