Ajay Dubey, a wildlife activist, has urged the Central Bureau of Investigation or Central Vigilance Commission to probe the National Zoological Park in Delhi. He highlighted serious issues like wildlife deaths, illegal tree cutting, and misuse of public money. In his letter to Environment Minister Bhupender Yadav, Dubey flagged violations of several laws including the Wildlife (Protection) Act and the Delhi Preservation of Trees Act. Dubey claimed a jackal died after entering a Himalayan black bear enclosure in November. The zoo did not conduct a mandatory post-mortem on the jackal's remains. He also blamed unauthorized use of rat poison for killing protected animals like a chowsingha (four-horned antelope). Deaths of a rhinoceros, blackbuck, and an elephant were also cited. The activist said over 100 mature trees were cut within the ecologically sensitive zoo grounds without official permission. He warned that though photographic and video proof exists, no action has been taken. Dubey also alleged financial scams including a "black ticketing" racket where visitors paid cash outside the official system. He pointed out irregularities in construction and purchases, claiming money was siphoned off via contractors. The zoo administration stands accused of using daily wage workers as helpers and drivers, and letting untrained staff handle animals, risking safety. Dubey demanded criminal cases against those responsible, emphasizing public accountability and conservation. The zoo authority has not yet responded to these serious allegations.