Maruthanaatu Ilavarasi is a wellwoven story about a king Veerappa with two wives one played by Saraswathi and the other does not appear in the movie and an evilminded Minister Chakrapani whose sister is the younger queen The two become pregnant and the evil genius persuades the king to believe that the senior queen poisoned the junior queen out of sheer jealousy the king believes but takes no action The frustrated Minister tries to eliminate the pregnant queen but she is saved by a courtier whom the Minister kills The pregnant queen escapes many trials and gives birth to a son MGR He grows up and meets a young woman Janaki and her friend Nagaratnam and falls in love unaware that she is a princess Their love grows but when he comes to know that she is a princess he distances himself from her After many trials the two come together and live happily