If you are travelling from Mumbai you have the option of travelling in a boat. There is frequent ferry service from the Gate way of India who would drop you to the Alibaug bus depot. Nagaon is jus 8 Kms from the depot. By road Nagaon is about 100 kilometres away from Mumbai. Nagaon is about 140 kms from pune and the shortest route from Pune is via Mulshi.