Take Baruipur/Laxmikantapur/Namkhana/ Diamond harbour local train from Sealdah south section to reach Subhasgram station.
From here take a rickshaw or toto to reach the ancestral house of Netaji.
One can take bus route also ie. Shyambazar, Khanna, Harinavi, Building More, Chingrighata, Science City, Ruby, Dhalai Bridge, Ajoy Nagar, Hiland Park, Mukundapur, Patuli, Kamalgazi, Narendrapur, etc. to go to subhasgram.