According to Times of India , In an incident which former Vice President Hamid Ansari's wife, Salma Ansari, called "shocking and scary", some unidentified men allegedly mixed rat poison in the water supply of Madrassa Chacha Nehru in Aligarh that houses 4,000 children. The institution located in the heart of the city is run by Al Noor Charitable Society which Ansari's wife heads. Police have lodged an FIR in the case under IPC sections 328 (causing hurt by means of poison) and 506 (criminal intimidation) and are on the lookout for two unidentified persons.
Chairperson of the society, Salma Ansari, told TOI that she was shocked to learn about the incident and asked the madrassa warden to file a police complaint. "Following the incident, we have decided to install CCTV cameras in the 18-year-old charitable institution which has 4000 students on its rolls," she said.
Aligarh senior superintendent of police Rajesh Pandey said, "Fortunately, a student spotted the miscreants and alerted the warden. We have collected water samples which will be sent to forensic science laboratory (FSL) for tests on Saturday." Giving details of the incident, madrassa warden Junaid Siddiqui said, "One of our students, Mohammad Afzal, who stays in the hostel, went to drink water from a common water tap on Friday evening. He spotted two men mixing some tablets in the tank. When he asked them what they were doing, the other suspect, who was sitting on the madrassa 's fence with a country-made pistol, threatened him to keep quiet."

After the duo left, the student picked up the rat poison wrapper left behind by them and alerted the warden. "The water supply area was immediately cordoned off. And students were asked to drink water from other tanks in the premises," the warden told TOI. Chief medical officer at Aligarh's J N Medical College, Dr Ehtisham Ahmad, said that though rat poison can't prove fatal to human beings until it is mixed with an anticoagulant (substance that prevents or reduces coagulation of blood), it could have made the students sick. "A lot, however, would depend on the quantity of rat poison mixed in the water ," he added.

Hamid Ansari had faced a flak from several BJP leaders, including current VP Venkaiah Naidu, after Ansari, in the last days of his tenure, said Muslims in India were experiencing "a feeling of unease, a sense of insecurity is creeping in". PM Narendra Modi, too, had reacted to it saying Ansari would "be free" to act, talk and work in accordance with his "basic political ideology and instinct" after his tenure ended.