Vikram initially does not accept the marriage wholeheartedly because he feels tricked or because he was in love with someone else (or simply not ready). He treats Sindhu with indifference, considering her an "unwanted" responsibility. Sindhu, despite being the daughter-in-law of the house, faces humiliation and struggles to find her place in Vikram's heart and the household. The main conflict arises from the female antagonists in the house (usually Vikram's aunt or sister-in-law). They are jealous of Sindhu’s purity and the fact that she is legally the wife of the heir. They constantly plot to create misunderstandings between Vikram and Sindhu. They try to prove that Sindhu is unworthy or that she is trying to destroy the family's peace. The Journey of Love and Redemption Despite the cold behavior from her husband, Sindhu fulfills her duties as a wife and daughter-in-law with grace. She protects the family honor even when her own respect is at stake. Najbolji Akcioni Filmovi: Sa Prevodom
The serial ends on a happy note with the family united and Sindhu earning the respect she always deserved. If you were instead looking for the story of the classic 1985 K. Balachander movie Sindhu Bhairavi (which is often re-aired on TV), that is a different story about a classical singer (Sivakumar), his wife (Sindhu), and his fan/mistress (Bhairavi) involving a complex love triangle and a surrogate child. However, given the "Raj TV Serial" context, the above summary of the dubbed show is likely the one you are watching Como Recuperar Archivos Borrados En Mega Guide
Since you are looking for a story related to "Sindhu Bhairavi" on Raj TV, you are likely referring to the Tamil dubbed version of the popular Hindi serial (originally aired on Dangal TV). In the Tamil version on Raj TV, the show was titled "Sindhu Bhairavi" .
In the climax, the truth about the villains' conspiracies is revealed to the entire family. Vikram realizes the depth of his mistake in mistreating Sindhu. He finally accepts her wholeheartedly and applies the Sindoor on her forehead with love and respect, signifying the completion of their marriage.