On 16th March 2020, India Post released this commemorative stamp series titled "UNESCO World Heritage Sites in India - II," featuring four natural heritage sites.

The Manas Wildlife Sanctuary, located in the foothills of the Himalayas in Assam, was designated a UNESCO World Heritage site in 1985. It is home to rare and endangered species such as the pygmy hog, golden langur, hispid hare, and Assam roofed turtle.

The Great Himalayan National Park in Himachal Pradesh, inscribed as a World Heritage Site in 2014, spans over 1,171 square kilometres and protects a diverse range of flora and fauna, including blue sheep, snow leopards, and Himalayan brown bears.

The Nanda Devi and Valley of Flowers National Parks in Uttarakhand were inscribed as a UNESCO World Heritage Site in 1988. Nanda Devi National Park, established in 1982, is known for diverse flora and fauna, including Himalayan musk deer and snow leopards

The Western Ghats, a mountain range running parallel to India's west coast, were recognised as a World Heritage Site in 2012, and are home to numerous endemic species and play a crucial role in influencing India's monsoon weather patterns.