While glancing through the other answers on here, I noticed one name missing. And I thought that I ought to add it, especially because in this person’s case, her career came to an end entirely due to her own decision making. That person is Bhagyashree. She had a mega-monster debut hit opposite Salman Khan in Maine Pyar Kiya.
A successful career was laid out for her - she could have gone from that dream debut to making movies with A-lister stars, and potentially dethroned Madhuri or Sridevi. But instead, what did she do? She went on to make a horrendously bad decision, which ended up catapulting her career into nothingness.
What was Her Bad Decision?
Well, she got married to a certain Himalaya Dasani (in a secret wedding prior to the release of Maine Pyar Kiya). That in itself wasn’t a bad decision - after all, audiences could have still accepted her in movies as a lead actress despite her getting married. Nope, the bad decision was that after Maine Pyar Kiya became a raging success, she refused offers with other stars and insisted that she be paired opposite her real-life-husband on screen. This resulted in three monumental duds - Qaid Main Hai Bulbul, Tyagi, and Paayal. After that she had one final movie with Avinash Wadhawan (Ghar Aaya Mera Pardesi), and then her Bollywood movie career came to a screeching halt.
All this for the zeal of wanting her husband to become a big successful actor in his own right! Sometimes, one just has to separate out real from reel life. Frequently, the twain do not mix!
Conclusion
Bhagyashree’s bad decision to ensure that her husband get launched as a hero in Bollywood opposite her, was the primary contributor for the demise of her own career. However, it looks like she doesn’t really have any regrets about it [3], and indeed, has had a pretty good and eventful life. She also happens to be the daughter of the Raja of Sangli, which is not too shabby a deal in life, what! So, even if her film career got adversely affected, her life is going great guns.
References
1. Bhagyashree Sallu image from 28 years of Maine Pyar Kiya: Eight lesser-known facts about the Salman Khan starrer
2. Bhagyashree Himalaya image from Bhagyashree: I have no regrets
3. Bhagyashree: I have no regrets
4. Bhagyashree Athens image from https://www.rediff.com/movies/report/bhagyashrees-gorgeous-greece-holiday/20180430.htm