Idhayathai Thirudathe

Sahana, a bride-to-be, notices her friend being beaten up by Shiva, the handyman of the local politician, Dakshayani. Shiva's act leaves Sahana fuming with rage. Later, Sahana witnesses yet another disrespectful and foul behavior of Shiva towards a young woman. After witnessing the incident of Shiva, Sahana gets distraught. Sahana decides to speak up against the injustice and gives her statement against Shiva to the police. However, oblivious to the fact that while she testified against him, Shiva manages to identify her despite her disguise. Planning on teaching Sahana a lesson, Shiva kidnapped Sahana. Sahana's wedding comes to a shocking halt when the family discovers that she is nowhere to be found. While Sahana's family faces humiliation, Sahana's wedding gets called off. Shiva releases Sahana after keeping her in captivity as an act of revenge. Getting humiliated by Vanavarayan, Dakshayani asks Sahana's parents to get Sahana married to Shiva. At first, Shiva and Sahana refrained but were compelled to agree. Sahana and Shiva exchange vows and promise to be with each other, with rage and revenge in the heart. After their wedding, initially, they both hated each other but the days go by Sahana and Shiva have a strong connection building up between them.

Six years later

This the story of Sahana,Shiva and their daughter Aishwarya. Some issues because of Dakshayani, Shiva and Sahana break their relationship. Then, Aiswarya Jr. (Shiva and Sahana's daughter) is under Sahana's custody. One day, Aishwarya gets kidnapped by goons and when she try to escape, she ended up in Shiva's car. Later, Shiva handle's Aishu to police and she meets her mother. Aishu told Sahana about how King take care of her. Aishu invites King to her birthday party. At the function, Sahana and Shiva meets for the first time after six years. Shiva get knows that Aishu is his daughter.[3]

• Hima Bindhu as Sahana "Raangi" Somasundaram Shiva – A businesswoman; Somasundaram and Devagi's daughter; Elangovan's sister; Shiva's wife; Jr. Aishwarya's mother
• Navin Kumar as Shiva "Rowdy Singam/King" Neelakandan – A local gangster; Neelakandan and Bhavani's son; Aishwarya's brother; Sahana's husband; Jr. Aishwarya's father [4]
• Baby Aazhiya as Jr. Aishwarya "Aishu" Shiva – Shiva and Sahana's daughter

• Riya Madona / Lavanya Manickam / Nithya Raj as Aishwarya "Aishu" Neelakandan – Neelakandan and Bhavani's daughter; Shiva's sister (Dead)
• B. Nilani as Dakshayani – Shiva's arch-rival; Sethupathi's mother; Aishwarya's murderer
• Sam as Sethupathi aka Sethu – Dakshayani's son; Shiva's rival; Aishwarya's Husband and murderer
• Ilavarasan / Ashok as Neelakandan – Godhandapani's brother; Bhavani's husband; Shiva and Aishwarya's father; Jr. Aishwarya's grandfather
• Shiva Kavitha / Caroline Hiltrud as Bhavani Neelakandan – Neelakandan's wife; Shiva and Aishwarya's mother; Jr. Aishwarya's grandmother
• Ananthan as Godhandapani – Neelakandan's brother; Valli's husband; Ram and Lakshmanan's father
• Karthiga as Valli Godhandapani – Godhandapani's wife; Ram and Lakshmanan's mother
• Deepan as Ram Godhandapani – Valli and Godhandapani's elder son; Lakshmanan's brother
• Domnick Nithies as Lakshmanan Godhandapani – Valli and Godhandapani's younger son; Ram's brother
• Issac Varghese as Somasundaram – Devagi's husband; Elangovan and Sahana's father; Jr. Aishwarya and Karthika's grandfather
• Meenakshi as Devagi Somasundaram – Somasundaram's wife; Elangovan and Sahana's mother; Jr. Aishwarya and Karthika's grandmother
• Karthik Sasidharan / Vijay lokesh / Bhalakhoumhar as Elangovan Somasundaram – Somasundaram and Devagi's son; Sahana's brother; Nithya's husband; Karthika's father
• Adhitri Dinesh / Subathra as Nithya Elangovan – Elangovan's wife; Karthika's mother
• Baby Nazriya as Karthika Elangovan – Elangovan and Nithya's daughter
• Rithieshvar as Karthick – Shiva's adopted brother
• Ragava Sabari as Suruttai – Shiva's friend
• Mounika Devi as Mithra
• Venkatesan as Rathnam – Dakshayani's assistant
• Birla Bose as Vanavarayan – Dakshayani's arch-rival; Manjula's husband; Amritha's father
• Devi Teju as Manjula Vanavarayan – Vanavarayan's wife; Amrita's mother
• Deepabalu as Amirtha Vanavarayan – Vanavarayan and Manjula's daughter
• Vijaya Patti as Vanavarayan's mother
• Rajesh as Parattai – Shiva's friend
• Soundar as Kannadhasan aka Tamil – A Tamil teacher
• Gemini Manikandan as Vetri
• Vishnukanth as Selvam
• Jay Sk as Parthasarathy aka Parthi - Sahana's Ex-fiancé
• Srinidhi Sudharshan as Ramya – Sahana's friend
• Mahesh Prabha as Vignesh – a police Officer
• Syed Aneesh as Rajkumar – Aishwarya's ex-fiancé
• Subash kannan - as kannadi (Vanavarayan's assistant)

• Jay Srinivas Kumar as Parthasarathy
• Dr. Nithuchandra Duraisamy as Niranjana
• Robo Shankar as Himself[5]
• Raksha Holla as Shankari – English Teacher[6]
• Aarthi as Aarthi – Sahana and Elangovan's cousin
• Seethalakshmi Hariharan as Priya Saravanan – Sahana's friend; Saravanan's wife
• VJ Pappu as Saravanan – Priya's husband
• Anandrafee as Manmadhan – Priya's cousin
• Jeevitha as Mallika – Commissioner of Police
• VJ Saravana Kumar as Deepak
• Nancy Jennifer as Anitha – Shiva's cousin
• Durgaa as Geetha – Shiva's cousin
• VJ Aadhavan as Himself
• Niharikka Rajesh as Meera – Shiva's student girl
• Amit Bhargav as Velu
• Sameer Ahamathu as DCP Suryakumar Sivaraman Zamindar – An inspiring police officer; Kayal's husband; Shiva's family friend (Mahasangamam with Sillunu Oru Kaadhal)
• Darshini Gowda as Kayalvizhi "Kayal" Suryakumar Zamindar – A teenager; Surya's wife; Sahana's friend