Vipul plays a contrast role in 4. In IC he was a rich spoilt brat, hasty, extrovert, flirtatious but had a golden heart and in the first few episodes he troubled Mansi to no end and later openly demonstrates his love for Chandni
Whereas in 4 he is an introvert and does not demonstrate his love for TP, he is well behaved, tries to be obedient and truthful.
He has done justice to both the roles. So I like him in both IC as well as 4.