Actor Aamir Khan has reacted to a question about actor Mona Singh essaying the role of his mother in their upcoming film Laal Singh Chaddha despite their age difference. Mona Singh plays Aamir Khan's mom in Laal Singh Chaddha. In the film, Aamir will be seen as Laal Singh Chaddha while Mona will play his mother Mrs Chaddha. Actor ka …