It is well known that the word 'Mother' has great significance in everybody's life. Many directors have made the films based on the sentiment of a mother and these films turned hit. Recently, actor Mahesh Babu has tweeted on the occasion of the birthday of his mother i.e on April 20th. Mahesh Babu has also uploaded a picture of his mother and he captioned,'One of the most special days in my life... April 20th. Happy birthday Amma'. The pic of the same has gone viral.