Their enduring love forms the central romantic conflict.
The plot explicitly states that Durai and Kavitha were in love and that they eventually marry.
Kalyan becomes the decisive facilitator of Durai and Kavitha's reunion.
After learning that Durai is supposedly dead, Kalyan helps conceal the information and ultimately assists Durai in marrying Kavitha.
His demands strongly affect Durai's choices and separation from Kavitha.
Durai's father arranges a marriage for him and demands an expensive dowry for his marriage to Kavitha.
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