Aina is a love story of two hearts and two souls but from two different social classes, one being a daughter of a business tycoon i.e. Rita (Shabnam) and one being a realistic, self-confident and a little bit arrogant poor young man (Nadeem). Rita is a leisure girl whereas Nadeem works as a hotel receptionist and they both fall in love. The differences between Nadeem and Rita's father Seth (Rehan) arises right from the beginning, esp. when he (Rita's father) criticised Nadeem for his social status and earning capacity, saying his daughter's sari costs 7,500 rupees as compare to his (Nadeem) monthly salary of 750 rupees. But after a struggle by Rita and a threat to her parents that she would suicide if she would not be allowed to marry Nadeem, her father agreed. So both married but Nadeem knew that Seth was not really happy with this marriage. One day Rita's mother (Bahar) came to her daughter's house, located in a middle class, and offered Nadeem a job in Seth's friend's business firm, which he denied. Not only this, he also angried on Rita about the telephone (which was thought to be a very luxurious item esp. in those days) installed in his house by her. A few days later, Rita's mother purchased furniture for Nadeem's house (perhaps to hurt Nadeem's ego) and invited her guests to a dance party in Nadeem's house. When Nadeem came back home, he became very angry and he asked Rita to leave the house and stay in her father's house. Rita left, with tears, Nadeem's house. Next day, Nadeem got an appointment from a bigger company perhaps from a hotel in Murree, so he has to leave the city immediately. But before leaving the city he tried to meet Rita, but, at the entrance of her house, he met Seth. Seth misinform him that Rita does not want to see his face again and decided to get divorce from him, as she has realised that she has made such a big mistake in marrying a poor man like Nadeem. Shocked and dishearted Nadeem left the city.