Yeh Rishta Kya Kehlata Hai

Naitik instructs Akshara to rest as she suffers from fever. He becomes over protective towards Naksh. Devyani brings the necessary items for Akshara and Karishma. Karishma decides not to fast on karva chauth. Akshara is adamant on performing the rituals of karva chauth. What happens next?