i noe for the fact that it is joydeep who did!! see guys i have noticed it all the time that joydeep for the fact wears a watch as the culprit and also they have shown everyone's hands except joydeep's. JOydeep ttook off the ring but they never showed the closeup on the sangeet ceremony. And also thats the they will make a for ahir to get married to Bhoomi(obiviously she loves no one else) i dont have a significant proof but i noe 100% that JOYDEEP DID IT!!!
hmm.. intersting concept.. but i dont think that Joydeep would be the culprit in this case.. althougth your reasons logical and understandable.. ekta will not make such a loveable character on teh verge of hatred!!! he has to end up with Boomi.. somehow.. and if he raped KT.. they is no way IN HELL that boomi will forgive him... and ekta can't do that..they is not future to that..
it has to be someone who will turn out to be negative in the future plots..
luv pri