Jyothika is a bundle of energy, and she gets to portray a character with multiple shades, and she excels in all of them, Be it the dutiful housewife who restricts herself to the limitations of a middle-class family life, and the familial bonding and relationships that curb her dreams, or the other angle of an energetic and captivating Radio Jockey  act where she gets to live her dreams, Jyothika is bubbly, cute and emotes beautifully, presenting a wide range of emotions to perfection. Vidharth, as the typical husband is an apt depiction of the average Indian husband, and is adequate. Lakshmi Manchu as the boss is authoritative, and the mentor angle to her character perfectly sits on her able shoulders, as she fits the persona beautifully. The rest of the cast including Kumaravel, MS Bhaskar are adequate, and Simbu's cameo is sweet.

Background score by AH Kaashif matches the mood of the movie perfectly and gives the feel-good effect to perfection. Mahesh Muthuswami's cinematography captures the middle-class lifestyle and the family environment of the protagonist as well as the contrasting classy radio station environment to perfection, and the songs are presented colorfully. KL Praveen's editing in the second half could have been better.

After several failed attempts, feel good maker Radhamohan is back with a genre that's so perfect for him to prove himself, and this time around, he has chosen to go for a remake. Given a proven subject, Radhamohan has handled the script of Tumhari Sulu very well, making the same suit the tastes of Tamil audience, by adapting it accordingly. He rides solely on Jyothika's strong shoulders for the most part of the movie, and the bubbly star never lets him down, as she makes the audience laugh and cry along with her, and ensures they empathize with Vijayalakshmi. While the first half moves on a leisurely pace, the second half gains some momentum, and if not for occasional drags, Kaatrin Mozhi is pretty engaging. With towering performance by Jyothika and a good support cast, appealing dialogues by Pon. Parthiban and with a rich technical team, though Kaatrin Mozhi is no match for the original Tumhari Sulu, nevertheless ends as a decent entertainer that is a can watch for the feel-good factor.