Willingly and without complaining
खुशी-खुशी
English Usage: He completed the task cheerfully, despite the challenges.
Hindi Usage: उसने समस्याओं के बावजूद खुशी-खुशी काम पूरा किया।
khushi-khushi, khushi khushi, khushee khushee, khushii khushii, khusii khusii