| 1. AR Murugadoss's smoking habits are not known. |
| 2. AR Murugadoss's alcohol consumption is not known. |
| 3. The initials 'AR' in his name stand for his father's name, Arunasalam. |
| 4. During college, he participated in cultural events and mimicked actors. |
| 5. He developed a love for movies and started writing jokes. |
| 6. He attempted to join the Madras Film Institute after college but was rejected. |
| 7. Prominent writer P. Kalaimani mentored Murugadoss and offered him a chance to write dialogues for the Tamil film Madurai Meenakshi. |
| 8. He collaborated with S. J. Surya and wrote dialogues for the film Kushi. |
| 9. He debuted in Hindi Cinema with the movie 'Ghajini', the first Bollywood film to earn over ₹100 crore. |
| 10. In 2012, he directed the Tamil action thriller Thuppakki, which joined Kollywood's ₹100 crore club. |
| 11. Murugadoss is known for his humility and soft-spoken nature in everyday life. |
| 12. In 2013, his brother Dileepan made his acting debut in Vathikuchi, directed by Murugadoss. |
| 13. He collaborated with S. J. Surya and worked as an assistant director for the film Kushi. |
| 14. His cousin, Dileepan, made his acting debut with Vathikuchi, which was a production venture by Murugadoss. |
| 15. He was an assistant director for Ratchagan (1997) for half of the film and then an assistant script director for the Telugu film Kalusukundam Ra. |
| 16. He was supposed to work with Ajith again on a film called Mirattal, which later became Ghajini. |
