I Think it would be unfold by herself Vishaka but might be until it’s too late ! Brinda will kill Dev but anyhow he survived that time Brinda guilt provoke her , and soften towards Dev ! But then Dev hate and Brinda’s love story will start ! It’s my gut feeling that Mandir Raaz is related to Dev ! Might be Dev is Naagraj or have some powers because no one can touch Naagmani or save it as Dev did ! So there will be a big twist waiting for us ! Let’s see how creatives unfold this mystery !
According to season 4 anybody who were born under ashlesha nakshatra can touch naagmani and Brinda,Nayantara and Dev were born under ashlesha Nakshatra that was the reason vishaka tried to use Nayantara to lift her the naagmani and Accidentally it was touched by Dev...