Here is a concise summary of the transcript:
**Title:** "Handcuffed for 24 hours" Challenge
**Participants:** Mayank and Nishu (a couple/friends)
**Challenge Rule:** Whoever removes the handcuff first loses.
**Summary:**
* Mayank and Nishu are handcuffed together for 24 hours, with Mayank initially in control.
* Nishu tries to negotiate and assert her needs (e.g., getting her feet cleaned at a salon), but Mayank often outmaneuvers her.
* As the challenge progresses, Nishu becomes increasingly frustrated and exhausted.
* Mayank attempts to force Nishu to concede by exploiting her discomfort (e.g., using a perfume she's allergic to).
* The turning point comes when Mayank arranges a surprise meeting with an unexpected "friend" - revealed to be a dog, which startles Nishu into breaking the handcuff, thus losing the challenge.
* The video ends with Nishu upset, accusing Mayank of cheating, and Mayank claiming victory. The outro includes a promotion for a quiz app called Quizy.
Here are the key facts extracted from the text, without opinions, numbered and in short sentences:
**Challenge Setup**
1. The challenge is "Handcuffed for 24 hours" between two individuals, Mayank and Nishu.
2. The rule is: whoever leaves the handcuff first loses the challenge.
**Timeline and Events**
3. The challenge starts with Mayank and Nishu going outside, with Mayank initially not wearing shoes.
4. Nishu needs to use the toilet with Mayank accompanying her (due to handcuffs).
5. Mayank has to go outside for "some important work".
6. They argue over taking the stairs or lift, and eventually take the stairs.
7. Mayank's car is used, with Nishu complaining about her makeup getting ruined.
8. Nishu wants Mayank to take her to a salon to fix her makeup.
9. Mayank instead takes Nishu to a beauty parlor, where she spends 2 hours cleaning her feet.
10. Mayank then decides to go to the gym, claiming he will work out in a park.
11. Nishu is reluctant to go to the gym, especially in a park.
**Later Developments**
12. Mayank mentions an app called Quizy, where users can earn up to ₹500 daily by playing quizzes.
13. Nishu tries to persuade Mayank to give up the challenge, offering to let him win.
14. Mayank uses perfume, to which Nishu is allergic, in an attempt to get her to unchain herself.
15. Nishu refuses to give up, despite discomfort.
**Challenge Conclusion**
16. Mayank attempts to scare Nishu into unchaining herself by introducing her to someone she supposedly fears, named Anmol.
17. The person initially presented is not the actual Anmol, leading to a surprise introduction.
18. Nishu ultimately breaks the chain, losing the challenge.
19. The challenge concludes with Mayank declared the winner.