'Kyunki Saas Bhi Kabhi Bahu Thi' 18th April written update: Nandini follows Karan & discovers his shocking secret

Under the soft glow of a dimly lit café, Pari opens her heart to Aryan, revealing the shadows of her past. Elsewhere, Ritik meticulously plans a romantic evening, crafting the perfect surprise for Mihir and Tulsi. However, in the shadows, Nandini becomes an unintentional detective, following Karan and uncovering an earth-shattering betrayal.