The mission of the organisation is to look after destitute orphan children, poor school going children, and isolated elderly persons and to empower women by upgrading their socio-economic status.

A few local school teachers took the initiative to set up a platform where they could render help to poor and needy people in distress; thus Bani Mandir was established in 1945 August.

69-year-old Somendra Nath Mandal graduated from Calcutta University and has working for the poor since 1965. He became General Secretary in 1973. Almost all the developmental work done by Bani Mandir is in remote villages of West Bengal and through his efforts. He believes that service to the poor and helpless is the service to the nation.

Bani Mandir focuses on developing the potential of women and girls to drive long lasting equitable changes. They emphasize on promoting quality healthcare, inclusive education, gender equitable and sustainable livelihood opportunities, disaster relief and preparedness.

Their efforts are focused on fighting against underlying causes of poverty and ensuring a life of dignity for all women and girls from marginalized and vulnerable communities, especially among Dalits and Adivasis. Bani Mandir also works with the elderly by providing them nutritional support because they are largely ignored by their families.

In 2016, NGO was awarded the Award of project ASTITVA by the Helpage India Significant achievement in the services to the elderly persons.

No of rural youth helped for one year/six months computer training programme - 19

No of secondary students who received books - 942

No. of poor students who received tutorial support - 236

No of children below 5 years supported in 4 Creches -100

No. of elders who got free eye check up - 1136

No. of poor people assisted through Ambulance service - 215

No. of elders provided with Spectacle - 225

No. of children getting sponsorship for health, education, nutrition and family assistance - 1046

No of adolescent girls covered in 1 day health education & counselling - 140

No of poor elderly people covered in medical clinic - 851

No of orphan/needy children who received food & health care support - 1046

No. of elders helped for cataract operation and free spectacles - 123

No of pregnant woman who are supported with nutrition and health checkups - 24

No. of able elders who joined in elders ESHGs and benefited with Saving & Credit scheme - 791

No. of Women empowered through 378 SHGs - 4536

No of poor villagers who received a cycle rickshaw for a livelihood - 11

No of aged persons who are receiving monthly supply of grocery & medical care - 333

Sevashram initiated destitute/orphan residential girls' home with 25 rural poor girls. It was then sanctioned by the Social Welfare Department of both Central & State Government. At present, more than 150 children are being nurtured and cared with the facilities of food, education, medical treatment, recreation, cultural program and child sponsorship program. Self Help Groups, health, education, awareness camps, and socio-cultural programs are implemented by the organisation in South Parganas of West Bengal.