Hi, hope you are doing well. I have a plot suggestion for you based on CID members but not a CID story just like Threads of love. And story can take place in south india, Where there are 4-5 brothers raised by their oldest brother all of them are orphans but together no matter what, no one is married yet but the youngest one(maybe Pankaj or Kavin) gets his girlfriend pregnant in the heat of the moment. So in order to marry her, his brothers have to marry before him due to the tradition of elder siblings getting married first, revels in all except the eldest ( Daya) having girlfriends. And to make sure that he marries the youngest one's girlfriends, elder sister's (Purvi) hand is offered and he accepts it for the sake of his brothers. But there is an age difference among them of 10-15 years.
Let me know if you like this plot and would work on it?