Raja Prasad, played by Aamir Khan, is introduced as a carefree and spendthrift college student in the 1990 Bollywood film "Dil." He comes from a modest background, with his father, Hazari Prasad, being miserly and always looking for ways to increase his wealth. At the beginning of the film, Raja and Madhu Mehra (played by Madhuri Dixit) engage in a series of pranks and misunderstandings, leading to significant conflict when Madhu falsely accuses Raja of attempting to molest her. This accusation severely impacts Raja's reputation. As the story progresses, Raja's character begins to show his resilience and integrity. Despite the false accusation, he stands up to Madhu and eventually wins her over with his honesty and charm. Their mutual animosity turns into love, and they start meeting secretly despite their families' objections. After their secret marriage, Raja faces severe opposition from both families. His father disowns him, and he and Madhu live in poverty. Raja works as a construction worker to support them, showing his dedication and love for Madhu. When he is injured at a construction site, Madhu's love and determination are tested as she begs her father for money for Raja's treatment. Raja's key traits include his carefree nature, resilience, integrity, and dedication. His relationship with his father, Hazari Prasad, is strained due to Hazari's miserly ways and Raja's spendthrift habits. Hazari dreams of marrying Raja to a rich girl to gain a large dowry, but Raja's love for Madhu and their subsequent struggles highlight his growth and maturity. By the end of the film, Raja's journey from a carefree, spendthrift student to a responsible and loving husband is complete. His character growth highlights themes of love, sacrifice, and the importance of integrity and resilience. Raja's transformation is a key element of "Dil," making him one of the memorable characters in Bollywood cinema.