क्यों किया

why did [someone] do it?

→ क्यों
phrase Common #1,579
why did [someone] do it? The subject and object are often understood from context; किया agrees with a masculine singular object or action.
HI: तुमने ऐसा क्यों किया?
EN: Why did you do that?

पूछना है कि क्यों किया उसने ये सब।

I want to ask why they did all this.

— Jaane Jaan (2023)

क्यों किया निक्कू ने ऐसा?

Why did Nikku do that?

— पीके (2014)

टॉम ने वैसा क्यों किया?

Why did Tom do that?

मेंढक ने पूछा,"ये क्यों किया?"

The frog asked, “Why did you do that?”

— Darlings (2022)

क्यों किया ऐसा?

Why did you do that?

— Ajeeb Daastaans (2021)

तुमने यह क्यों किया?

Why did you do this?

— The Shawshank Redemption (1994)