1. Festival(Abstract Noun) A festival marks the beginning of spring and the end of winter. It generally represents the desire for a new.

English: spring festival,
Assamese: বসন্ত উৎসৱ,
Karbi: botor kekur

Sub Idea:

a. Proper Noun: Bihu, বিহু, बैसागु, bushu, বিচ্চু...