TPK summary:
1. Thapki stammers and has been facing lots of difficulties and ridicule due to this
2. Her marriage gets fixed to Dhruv by his mother Vasu. Dhruv is rich and successful and loves Thapki a lot.
3. Vasu finds out at the last minute that Thapki stammers but does not have courage to stop the marriage.
4. She emotionally blackmails her adopted son to stop the marriage. Bihan knocks out the groom and takes his place as per Vasu's bidding.
5. Now everyone hates Bihaan for doing that and is waiting for 3 month divorce waiting period to be over.
6. Vasu wants Bihaan and Thapki to unite so that Dhruv cannot go back to her.