New Delhi April 20: As we knew that Andhra Pradesh Chief Minister has been busy with his Birthday celebrations.From this perspective West Bengal Chief Minister Mamata Banerjee today greeted Andhra Pradesh Chief Minister N Chandrababu Naidu on his birthday. Soon he took his social network twitter handler that he tweeted that "Birthday greetings to N Chandrababu Naidu ji. I pray for your long and healthy life," Ms. Banerjee tweeted.We knew that chief minister Chandrababu Naidu has decided to celebrate his birthday by spending the entire day with people.