Chromatim which cindensed only during cell division called euchromatin?

The condensed form of chromatin that only occurs during cell division is called heterochromatin, not euchromatin. Euchromatin is the less condensed form of chromatin that is actively involved in gene expression and transcription.

Incorrect. Chromatin that condenses only during cell division is called heterochromatin. Euchromatin is chromatin that remains decondensed during cell division.