Kartik to save Vedika's life

Kartik gives his consent to marry Vedika (Pankhuri Awasthy) and this makes all in the family happy. However, Chachu (Ali Hasan) wonders what to do, and will also wonder if he needs to tell the truth of Naira being alive to Kartik.

https://www.iwmbuzz.com/television/spoilers/yeh-rishta-kya-kehlata-hai-kartik-save-vedikas-life/2019/07/19

I completely understand akhil's apprehension in telling everybody. They've all been thinking naira is dead, vedika-karthik marriage is now fixed with karthik's clear consent who to everybody's face is showing he is happy with the marriage and to top it off akhil is the only person who has seen naira alive and that too all the way in goa. He might be feeling that the family would be disturbed he says he saw naira alive when he has no proof of it and might think he probably just imagined naira, especially karthik would be more disturbed, headache dadi is sick also.