But, utmost financial crisis led him to drop out from the Art School and consequently start his career as a Shepherd Designer in the Army Navy Stores in Calcutta.

In addition to this employment, he used to sing Swadeshi Jagaran at Prabhat Ferry and also Rabindra Sangeet at Aakashvani's Bombay centre once a month.

He retired as the Art Director of Publicity Forum in Kolkata where he mentored noted commercial artists like Ranen Ayan Dutt and Ahibhusan Malik.

The principal characteristics of his paintings were simplicity and brightness which even grabbed the attention of Pablo Picasso, renowned Spanish painter and sculptor.

[1][8] In 1978, the book named Crucified India (in Bengali accent: Krushbiddha Bharat) authored by Munshi, which was dedicated to his junior and colleague Satyajit Ray, was published.