किसी को बताना

to tell someone

→ कोई
phrase Rare #5,813
to tell someone किसी को means “to someone”; in negative sentences, it often means “to anyone.”
HI: मैंने यह बात किसी को बताई।
EN: I told someone about this.

ये सब किसी को बताना मत।

Don't tell anyone about any of this.

— Ramprasad Ki Tehrvi (2021)

और ये रिहर्सल किसी को बताना मत, हाँ?

And don't tell anyone about this rehearsal, okay?

— AK vs AK (2020)

बेटा किसी को बताना भी नहीं, हाँ।

Son, don’t tell anyone, okay?

— OMG 2 (2023)