Madhubala – Ek Ishq Ek Junoon () is an Indian television series that premiered on 28 May 2012 and ran through until 9 August 2014, Produced to celebrate 100 years of Indian cinema, it aired on Colors TV Monday to Friday (later Saturday) evenings.

Plot

Madhubala "Madhu" Choudhary was born on a film set and works in a parlour; her family members are junior artists in the Mumbai film industry. She fights a case of hit and run on behalf of Mukund against Bollywood superstar Rishabh Kundra "RK" who gets jailed. Mukund proposes Madhu and they get engaged. RK insinuates that Madhu is his girlfriend and humiliates Padmini and Shamsher's relationship, saying they're having a secret affair for last 20 years.

Madhubala – Ek Ishq Ek Junoon

Mukund breaks off his engagement thinking Madhu has an affair with RK. She slaps RK who puts forward an offer for Shamsher's treatment as he was badly beaten up on RK's set. RK asks Madhu to marry him which she accepts. Rude and egotistical, he becomes hell-bent on ruining her life. Eventually, Madhu begins falling for him. Sikandar's wife Deepali wants her to leave RK but in vain. Shamsher shoots RK; Madhu donates her blood to save him.

Madhubala – Ek Ishq Ek Junoon

No longer rude to Madhu, RK begins loving her. She restores his relation with Radha. The two confess their love; RK helps Padmini and Shamsher in getting married. Balraj abducts all but is shot to death by Padmini. RK needs a break and says he wants to marry Madhu properly so they can take their marriage forward. But suddenly, he tells he'd never loved her; it was his plan to entangle her in his love and then destroy her life when he leaves her.

Madhubala – Ek Ishq Ek Junoon

Devastated, Madhu moves on. Everyone convinces RK to bring her back but he doesn't budge on his decision. Madhu gets a job as a hairstylist at RK's film set. He is again rude to her and adamant to make her leave. Later he decides to win her back and abducts her to forcefully live with her at his home. Earlier, Madhu not relents. Enters Sultan. Madhu leaves saying she won't come back unless RK confesses his love. He finally proposes her, and they unite.

The preparation for grand wedding begins. Sultan falls in love with Madhu, and is now vengeful on RK. Being his half-brother, he uses this to humiliate him. Sultan refers to RK as a bastard as Mohan firstly married Meera. Sultan fakes his death and RK is jailed, until Madhu learns the truth. Sultan asks her to divorce RK and come to him to save him. Helpless, Madhu agrees. Enraged, RK uncovers Sultan's deeds and eventually kills Sultan with the police to save Madhu.

Due to some reasons, RK is banned from Bollywood and plans to produce his own film. To help him, veteran director Mehul Chopra selects Madhu as the heroine but RK refuses and is actually fascinated by idea of her being heroine. RK finds a heroine but is dissatisfied and vows not to pressurize Madhu to sign the film. Thinking his career is over, RK is about to commit suicide when his assistant Bittu informs him Madhu has stepped in as the heroine.

Super excited, RK appears as the lead of his film in front of media with Madhu who marks her entry into Bollywood. He confesses that he loves and thanks Madhu for becoming his heroine. After sometime during shooting, RK is injured and suffers paralysis. Madhu decides to finish the film. RK develops insecurity to her due to her rising fame and being ignored by everyone because he is handicapped. Madhu gets pregnant but RK doesn't want a baby, breaking her heart.

The film "Ishq Ek Junoon" becomes a superhit, with RK out of his problems. Madhu miscarries and blames him who tries his best to avert her mind from getting into film industry. Later, Madhu turns a heroine like she was destined to be. RK's look-alike KRK is introduced, hired by Kulbhushan for revenge for RK. KRK agrees to take RK's place in need of money but leaves his life when he realizes of separating him from Madhu.

KRK returns to his hometown with prize money from RK for speaking up the truth and showing decency. Kulbhushan is arrested. Pregnant once again, Madhu gives birth to a girl whom RK also names Madhubala. He prophesies that she will become a superstar like her parents. RK and Madhu die in a bomb blast planned by Pam Harshvardhan kapoor and NikhilLamba to trap and put Harshavardhan Kapoor in jail for killing Rk and Madhu and also for snatching Harshvardhan's Property . Radha escapes with baby Madhu.

20 years later

Jr. Madhubala is now grown-up and looks like Madhu. She lives with Radha and falls in love with Abhay Kapoor. They announce their marriage but he gets her married to Raja, RK's mentally challenged second lookalike.