"I won't forget you."
Here's a breakdown of the phrase:
* Tumko: This is the object pronoun "you" in Hindi.
* Na: This is the Hindi negative particle "not."
* Bhool: This is the Hindi verb "to forget."
* Paayenge: This is the future tense form of the verb "to be able to" or "to manage to" in Hindi.
Together, the phrase expresses a strong feeling of attachment and a promise to remember the person addressed.