[1]Law was born to Ambikacharan Laha and Kiranbala Devi at their home on Kailash Bose Street in Calcutta.
He had an interest in bird from an early age and began to keep them and observe them in captivity.
He was elected Fellow of the Zoological Society of London and Member of the British Ornithologists' Union.
During this time he found that Law was a lonely man who began to write up his ornithological work to overcome his wife's death.
His villa in Calcutta was often rumored to house a Jewish mistress which Chaudhuri and his wife found amusing.