The Home Ministry has issued revised guidelines, a day after Prime Minister Narendra Modi announced extension of the nationwide lockdown till May 3.

"Staff/workers required to operate and maintain zoos, nurseries, wildlife, fire-fighting in forests, watering plantations, patrolling and their necessary transport movement" to work in the states and Union Territories, the guidelines said.

Reacting to these guidelines, wildlife activist Ajay Dubey said the Centre has taken a very important decision by allowing maintenance of zoos and wildlife.

"Lockdown has disrupted the normal life. There is a need to ensure that wildlife in zoos, national park and surrounding forest does not face any problem. Offices required to check fire-fighting in forests have been allowed to remain open in the states and UTs which is a very welcome decision," Dubey said.