Kolangal(Tamil: கோலங்கள், transl. The Patterns) was an Indian Tamil-language soap opera which aired on Sun TV. It is a Prime time serial that aired weekdays from 24 November 2003 to 4 December 2009 for 1,533 episodes. It was the first series in Tamil television history to have crossed 1,000 episodes. The show is aired in Sun TV every Monday to Friday at 7.30 pm and later shifted to 9:00 pm.
The story mainly talks about Abi and her life which changes due to the people around her.
Abi, a hard-working, ambitious woman with strong beliefs and her business rival and half brother, Aditya. Abi with her mother, Karpagam maternal uncle, two sisters, Anandhi and Aarthi and brother, Manohar leads a healthy life though she tries to keep herself happy because she had a dark past.
Her father had abandoned her family and married another woman, Kanchana, the mother of Aditya, and has settled as a business tycoon. Abi initially marries Bhaskar but the relationship becomes abusive. Her mother-in-law, Alamelu tortures her constantly.
Eventually, Aadhi lures all Abi's close family members and turns all her family members are against her.
Abi divorces her husband and starts a new life. She starts a new company but is given competition by her stepbrother Aditya Eeswaramoorthy whom he considers as her as sworn rival. Abi escapes from her brother's tortures and puts an end to his injustice.
In the last scene, Abi with the help of her good friend Tholkappiyan leads a peaceful and hermit life. Abi starts to help an orphanage, thereby ending what she couldn't do to help herself, and wishes to be dear among the orphans even though they are not known to them. She leads a victorious life with the help of 2 friends, Tholkappiyan (Thols) and Usha, Aadhi's ex-wife.
Devayani as Abinaya "Abi": (Baskar's ex-wife. Tholkappian and Usha's best friend. Eshwaramoorthy and Karpagam's eldest daughter. Anandhi, Manohar and Aarthi's eldest sister. Adhithya, Arjun and Anjali's elder step-sister and MD of Abi Constructions) (01-1533)
Deepa Venkat as Usha (Abi and Tholkappiyan's best friend/wellwisher, Kailash's mother and Aadhi's wife) (01-1533)
Ajay Kapoor as Adithya "Aadhi" Eshwaramoorthy (Eshwaramoorthy and Kanchana's first son and Arjun & Anjali's brother and Anu's cousin, Usha's husband and Kailash's father, Abi's younger step-brother and MD of Aditya Builders; Main Antagonist) (206-1527)
V. Thiruselvam as Tholkappiyan "Thols" (Dileepan) (Abi's wellwisher and Menaka's brother. Chellamma's son.) (01-1533)
Abhishek Shankar as Baskar Narayanan (Abhinaya's ex-husband and Sangeetha's husband, suicides at the end) (02-1530)
Manjari Vinodhini as Anandhi Karthik (Karpagam's 2nd daughter)
Poornima Indrajith as Meenu (Menaka)/Menaka Madhubalakrishnan/Chellamma (Menaka - a dynamic American multi-millionaire businesswomen & Tholkappiyan's younger sister who allies with Aadhi to do a satellite project; Chellamma - Tholkappiyan and Menaka's mother who dies in Kerala after trying to escape from a rich womanizer)
Sathya Priya as Karpagam Eshwaramoorthy (Abi, Aarthi, Anandhi and Mano's mother; Eshwaramoorthy's 1st wife) (01-1533)
Nalini as Alamelu Narayanan (Abi's greedy and money-minded ex-mother-in-law. Narayanan's wife. Seetha, Baskar and Vidya's mother. Antagonist) (03-1530)
Subhalekha Sudhakar as Narayanan (Alamelu's husband. Seetha, Baskar and Vidya's father, a kind-hearted man who always wanted Abi to live with Baskar) (03-601)
C. Pauline as Geetha's aunt/Karthik's aunt/police constable/lawyer/guest at Alamelu's feast/as a woman who got cheated in a fake raffle draw/old age home caretaker
Jayanthi Shankar as a children's home caretaker
E. R. Malliga as Tholkappiyan's area resident/Geetha's aunt/prisoner
Gemini Rajeshwari as Geetha's aunt
P. Jyothi as a college student
Hemalatha as Geetha's friend/Anandhi's colleague
Vasantha as Tholkappiyan's neighbour/guest at Karthik and Anandhi's engagement/guest at Abi Constructions stone laying ceremony/Sivadhas's neighbour/Baskar's housemaid/tenant of Eeswaran's old house/prisoner
Kovai Saradha as Rajesh's neighbour/saree vendor
K. Lakshmi Devi as Ramesh's mother
Venkatakrishnan as a guest at Thiruvenkadam's house warming ceremony/doctor
Shanthi as a guest at Karthik and Anandhi's engagement
Raja Rani Pandian as Construction Workers Association leader
R. Selvakumar as Vaiyapuri
Vaazha Meen Muthuraj as Sithakutty's son
T. Sivakumar (Soodhu Kavvum Sivakumar) as Sivakumar, Rajaram's colleague/Suresh/Aadhi's spy in Abi Constructions
R. C. Sundar as Rajamani Kandhasamy's partner/Narasimman
Delhi Ranganathan as a judge
Viji Kannan as Aarthi's lecturer
M. Rani as Vaikkapuri's wife/Vijaya
V. Krishnan as Baskar's managing director
J. Nadar as Karthik's family astrologer
Vijay Ganesh as a marriage broker
Srinivasamoorthy as Nalabaga Chakkaravarthy Narasimman
MLA Thangaraj as Desiya Sindhanaiyalargal Katchi member
Vimal Raj as Sivadas henchman
Ushapriya (K. Priya)
R. R. Reddiyar
KPY Mullai as Storywriter Govindasamy
Udumalai Ravi as Guru (Rajesh's Friend)
Kuppan as Kuppan
V. Thiruselvam had some casting choices for the female lead, but B. Srinivasan preferred to cast a film artist for the female lead as he had already informed Sun TV. Initially actress Soundarya was about to do the female lead. Although she was interested, she was unable to join the crew due to her 2-month contract with the Bharatiya Janata Party to support them during election campaign. Then Devayani was suggested for the female lead by the production side to the director to which he had agreed as she would perfectly fit into the character and she was already acting in films. Initially Devayani had some issues over the terms and conditions agreement with the production side, as a result she almost opted out of this series. But, Sathyapriya who was signed to play the mother of the female lead managed to convince Devayani to play the female lead in this series and sorted out the misunderstanding between her and the production side. Apart from such issues, Devayani was very interested after listening to the script from her husband Rajakumaran to whom the director had already narrated and he had also praised the director. So, she signed to play the female lead Abinaya. Devayani made her acting debut in television with this series.
Kolangal was one of the highest-rated Indian and Tamil soap opera which garnered ratings ranging between 23 and 26 TVR. Between 20 December 2004 to 13 January 2005 it had a rating of 25.68 TVR. In September 2007, it maintained its top position with 21.58 TVR.