The study by the Kerala University of Fisheries and Ocean Studies (KUFOS) showed that 97.3 per cent of workers under the scheme are women.
Conducted as part of a project on Impact Assessment Study of MGNREG scheme in Alappuzha District, the study was funded by Kerala State Institute of Rural Development.
The project was implemented with a view to understand the impact of the scheme on poverty eradication and empowerment of women and marginalised groups.
It also found that there was a decrease in tension among women.
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Twenty seven per cent of respondents believed the scheme has helped boost their saving habits and has brought a kind of financial literacy among them, which is necessary for financial inclusion.
In Alappuzha District, the scheme has helped bring down the intensity of communicable diseases through various kinds of cleaning activities in surroundings and water bodies, which is a part of the scheme.
It has also resulted in increase in wages, especially in fisheries, construction, coir and agricultural sectors, it said.
Dr V Ambilikumar, Head, Department of Business Administration and Management, KUFOS and principal investigator of the project, said the scheme has created a revolution in women's empowerment and would definitely reflect in the structure of society.
"Unlike other states, Kerala has higher population density, very limited land holdings and shortage of agricultural land and public facilities. Hence activities included in list of the permissible works under the scheme should be reviewed and implement in accordance with the situations", he said.