Har Yug Mein Aaega Ek Arjun

ETF reaches the spot of Kanchan's death. Roopal is found to be standing outside Kanchan's house. Later, a bridal dress is discovered in Kanchan's bag. ACP Arjun finds that Kanchan was to marry her professor, Bharat. What was the motive behind Kanchan’s murder?