Suyash was terminally ill. In a bid to ensure Kashish’s future, he had pushed her away, trying to make her hate him so her grief wouldn’t destroy her. For weeks, viewers watched Kashish suffer, confused by Suyash’s cruelty, unaware that the man she loved was sacrificing his own happiness for her survival. Warning: Major spoilers ahead.

For the KTH fandom, this episode represents the end of innocence. It was the final nail in the coffin of the "Suyash-Kashish" fairytale. Even though the show continued (and later went through a notorious leap), Episode 670 is considered the spiritual series finale for most OG fans. Two decades later, Kahin To Hoga remains a cult classic. Whenever a new generation discovers Rajeev Khandelwal’s brooding intensity on YouTube, they are inevitably directed to this episode.

It set a benchmark for how to write a tragic romance on Indian television. It proved that you don't need a car explosion or a fire to break an audience—you just need two people, a truth too late, and a goodbye.

Unlike the screaming matches of other shows, this episode relied on close-ups. The tear rolling down Suyash’s cheek. The tremor in Kashish’s hand. The heavy silence between dialogues.

Starring the electric pairing of Rajeev Khandelwal as and Aamna Sharif as Kashish , the show was the definition of "angsty romance." And while every episode had its share of longing looks and family politics, there is one number that fans whisper about with a collective wince: Episode 670 .

Let’s open the time capsule and revisit why this specific episode is a landmark in Indian television history. To understand Episode 670, you need the context of the 669 episodes that came before it. Suyash and Kashish had the quintessential "will-they-won't-they" dynamic, punctuated by evil twins (Rishi), scheming matriarchs, and amnesia tracks. But by the mid-600s, the show had taken a dark, tragic turn.