Chinna Marumagal (credited as Chinna Marumagal: 12aam Vaguppu) (transl. Young Daughter-in-law, 12th class) is a 2024 Tamil television drama series which airs on Star Vijay from 22 January 2024 and is also available on the digital platform Disney+ Hotstar.^[1][2] It stars Navin Kumar and Swetha in lead roles. The series is directed by Manoj Kumar and produced by Kushmavathy under Estrella Stories.^[3]

In a tightly-knit community governed by tradition, Tamilselvi, a spirited young girl, harbors a fervent desire to pursue a career in medicine. However, her aspirations clash with the deeply ingrained beliefs of her parents, who adamantly oppose the idea of their daughter venturing into a male-dominated field. Despite her unwavering determination, Tamilselvi finds herself at odds with her family's expectations, with only her sister offering solace and encouragement amidst the disapproval.

As societal pressure mounts, Tamilselvi reluctantly succumbs to the weight of familial pride and cultural norms, resigning herself to the fate of an arranged marriage. Her betrothal is to Sethupathi, the son of the village's influential patriarch, a man staunchly opposed to the education and empowerment of women. Forced into a union that threatens to stifle her ambitions and curtail her freedom, Tamilselvi confronts the daunting prospect of relinquishing her dreams for the sake of conformity.

Yet, amidst the constraints of her circumstances, Tamilselvi refuses to surrender to despair. With unwavering resilience and indomitable spirit, she embarks on a journey of self-discovery and empowerment. Through perseverance and courage, Tamilselvi begins to challenge the oppressive norms that confine her, defying the expectations placed upon her by society and forging her path towards fulfillment.^[4]

• Navin Kumar as Sethupathi "Sethu" Rajangam, Tamizhselvi’s husband. Rajangam’s son, comes from a rich patriarchal family. He fell in love with Tamizhselvi and eventually marries her.
• Swetha as Tamizhselvi "Tamizh" Sethu (nee Chellapandi), Sethupathi’s wife, Chellapandi and Vasanthi's daughter, an intelligent schoolgirl who wants to become a doctor.

• O.A.K. Sundar as Rajangam, Sethu's Father
• Arul Rajan as Chellapandi, Tamizh's Father
• Thamarai Selvi as Vasanthi, Tamizh's Mother
• Gowri Janu as Mohana, Sethu's Step Mother
• Shiva Kavitha as Eeshwari, Sethu's Aunt
• Sankavi as Thamarai, Sethu's Cousin
• Banumathy as Savithri, Thamarai's Mother
• V.R. Thilagam as Vellathai, Sethu's Grandmother
• Gurupharan as Bose, Eeshwari's Son
• Mahalakshmi as Chitra, Eeshwari's Daughter
• Mohana as Kanmani, Sethu's younger Sister
• Minor Yogi as Karuppu, Sethu's Uncle
• Dharshini as Dhanam, Tamizh's Sister
• Punitha as Malar, Housemaid,Bose's Wife
• Swetha Subramanian as Poorani, Rajangam's Elder Daughter-in-law
• Shravan Sakthi as Sanaasi, Rajangam's Brother, Eeshwari's Husband
• Theni Rajesh as Natesan, Rajangam's Elder Son
• Praveen Deva as Arumugam
• Atchaya Barathi as Bhavani, Sethu's Elder Sister
• Vedha Doss as Maaran, Bhavani's Husband
• Priya as Tamizhselvi’s school principal

The show got a TVR of 5.58 on its Launch Week (Week 04 2024).^[5]

In March 2025, the series fetched its Highest Ratings 7.81 TVR at UR Since its Launch and Became Slot Leader at 9:30 pm holding 5th Position among all Tamil Television Series.^[6]