The body also pitched for a Pesticide Management Bill to stop the unsafe use of such pesticides.
The Centre for Science and Environment (CSE) said the death of farmers could have been avoided and pointed towards "complete failure" of agriculture departments in managing pesticides.
According to the organisation, over 30 farmers have reportedly died and hundreds have become ill due to an infection caused by spraying of pesticides on the fields in several districts of Vidharba region in Maharashtra, since July this year.
"The incident highlights the urgent need to fix several long-standing gaps in pesticide management in the country. Most urgently, India needs to ban use of class I pesticides which are very toxic. Many of these are banned in other countries," said Chandra Bhushan, deputy director general of CSE.
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Bhushan said pesticide poisoning had become a chronic problem in the country.
Every year, there are about 10,000 reported cases of pesticide poisoning in India. In 2015, about 7,000 people died because of accidental intake of insecticides and pesticides.
Pesticides like Monocrotophos and Oxydemeton-methyl are considered class I pesticides by the World Health Organization (WHO), which are further categorised into extremely hazardous (class Ia) and highly hazardous (class Ib).
India still allows the use of these pesticides, many of which are banned in several countries.
"While India urgently needs to address pesticide mismanagement from several aspects, the most urgent step is to ban use of class I pesticides," said Amit Khurana, senior programme manager for food safety and toxins at CSE.