Professor at Raja Balwant Singh College in Agra Dr K P Singh did a research and found the Yamuna water contains toxic levels of heavy metals that get accumulated in the vegetables and then gets transferred to the people who consume them.

 According to a recent study, these 'healthy' foods could be making us severely sick due to the high levels of heavy metals in them.

"We conducted a thorough study on all members of the cucurbitacea family, which flood the grocery market during the summer months. These include all forms of gourds, including the much vaunted 'Lauki' & 'Torai', who samples were collected, dried in an oven and ground to be observed under an Atomic Observation Spectrometer to assess the levels of heavy metal content in these vegetables.

The results were shocking," said Dr K P Singh, Professor at Raja Balwant Singh College in Agra, the Yamuna water is the principal means of irrigation for most of these vegetables that are grown in the riverbed and being primarily sewage from Delhi and Mathura. He added that the heavy metals found in the cucurbitacea family vegetables were way above the WHO mandated levels and was seriously affecting the health of their consumers.