Kya Huaa Tera Vaada

Beginning

Kya Huaa Tera Vaada is the story of Pradeep Singh (Pawan Shankar) and Mona Singh (Mona Singh), a young couple who lives in Mumbai with their three children Bulbul, Rano And Rajbeer. Married for 12 years now, between their work and chores, they try their best to find time for each other but their responsibilities take precedence. Pradeep works in a multinational company and Mona is takes care of the house and the family.

Pradeep's ex girlfriend Anushka (Mouli Ganguly) joins his company as his boss and the two start an affair. Eventually, Pradeep leaves Mona and moves in with Anushka, filing for a divorce. While Mona becomes a successful professional, Anushka's ex husband Shaurya Mitra (Chetan Hansraj) starts blackmailing her. A desperate Anushka ends up killing Shaurya and lets the police charge a drunk Pradeep for the murder. Meanwhile, Anushka's adoptive brother Tarun (Raunaq Ahuja) marries Pradeep's younger sister Taani (Priya Chauhan). Mona gets hold of Shaurya and Anushka's marriage certificate and proves Pradeep's innocence in court. Anushka tries to kill Mona at a party but Pradeep comes in the way to save Mona. Before he dies, a guilt-ridden Anushka reveals that she and Pradeep have a daughter. Anushka is taken to prison but she swears revenge on Mona. At Pradeep's funeral, his family bids him farewell, but Bulbul is very upset for what Pradeep did to her mother.

Ten years later^[1]

Mona's children have grown up. Rano,17, is very mischievous; Rajbeer, 15, is also naughty. Mona still loves Pradeep and talks to him, and sees his traits in his children. Bulbul (Sargun Mehta), now 23, is very strict, but sweet, simple, selfless and mature. Mona runs a restaurant. Bulbul has lost all trust in men after what her father did and now works as a journalist exposing men who take advantage of women. Bulbul finds out that since Anushka was released early from prison, she married a rich man in Australia, Balbir Bhalla, who also raised her daughter Anika (Neelam Sivia).

Mona meets Jatin Chopra (Hiten Tejwani) who now owns the news channel Bulbul works with and who Pradeep's father had wanted her to marry years ago. He asks Bulbul to shoot his business partner's son's wedding. Incidentally, the groom is Vihaan (Mohit Malhotra) and the bride is Bulbul's half sister Anika. Finding out that Vihaan's family is filing for bankruptcy, Anushka convinces Anika to break off the marriage leaving Vihaan broken-hearted and hurt. Vihaan decides to work under Jatin and is posted as an assistant to Bulbul who is unaware of his identity.

Anushka reveals that Anika is her and Pradeep's daughter leaving Mona shocked. An angry Bulbul gets drunk and unknowingly reveals Pradeep's past with Anushka and Anika to Vihaan. The two connect. With help from Rano, Bulbul realises her feelings for Vihaan and they fall in love. Rajbeer's Australian university turns out to be fake; he comes home and tries to commit suicide but is saved by Jatin. Rano falls for a boy named Rohan who has been sent by Anushka to take advantage of Rano. When he starts blackmailing Rano, Anushka comes to her rescue and turns Rano against Mona. Vihaan is announced as chairperson of the company angering a clueless Bulbul.

Mona realises Anushka is responsible for Rajbeer's university fiasco and exposes this to the media. A series of misunderstandings leads to Jatin announcing in front of the press that he'll marry Mona and she accepts. A furious Anushka sets Mona's restaurant on fire in which Vihaan is injured. Bulbul realises her mistake and confesses her love to him. Anika visits Vihaan and feels guilty. Rano and Rajbeer visit an injured Mona and reconcile with their mother realising Anushka's true intentions.

Anushka tells Anika about her real father and Anika decides to shift to Mona's house. Anika creates a misunderstanding between Bulbul and Vihaan. Pradeep's father, Alok, decides to shift to Anushka's house and joins Rano and Rajbeer to create problems for Anushka. When Anika finds out that Bulbul is the girl Vihaan loves, she returns to Anushka's house. Vihaan manages to reconcile with Bulbul. Anika blackmails Vihaan into marrying her by using false evidence to show Rano killed Rohan. Rano comes clean to Jatin who explains everything to Bulbul. Along with Vihaan, they team up against Anika and start investigating. Mona finds Rohan is still alive and confronts Anushka who confesses to everything.

Anika overhears that Anushka had shot Pradeep and has been using Anika to get back at Mona. Heartbroken, she tries to commit suicide, but is saved by Mona and Jatin. An angry Anika tells Anushka that she wishes Mona was her mother. Anushka is shattered. Anika divorces Vihaan and makes peace with her family. Vihaan and Bulbul are married and Anika finds love with their colleague Jogi. Rajbeer, Rano and Bulbul accept Anika as their sister. Anushka blesses Bulbul and Vihaan, and apologizes to Mona for everything, saying she is returning to Australia. The show ends with Mona talking to Pradeep's photo.

Crossover

Kya Huaa Tera Vaada had two crossover episodes with Bade Achhe Lagte Hain on 4 & 5 December 2012.

Replacement

• Kya Huaa Tera Vaada would air its last episode on 23 May 2013, thereby completing 276 episodes successfully and would be replaced by Bharat Ka Veer Putra – Maharana Pratap from 27 May 2013.

Remakes

• This serial is dubbed as Sonnathu Neethane in Tamil and airs on Jaya TV.
• This serial was dubbed in English for broadcast in Jamaica on CVM Television as The Promise.