Bangladesh observed the World Tiger Day on Thursday with call for saving the endangered tigers and protect Sundarbans, the world's largest mangrove forest, the home to Royal Bengal tiger, from global climate change.

The call was made by speakers at a discussion held in the capital Dhaka organized by the Bangladeshi government, Forest Directorate, the World Bank and the Wild life Trust.

The Bangladeshi government joined 13 other tiger range countries to observe the World Tiger Day when a discussion was arranged, a colorful procession was brought out and a photo exhibition was held in Dhaka.

In the discussion it was told that 60 tigers were killed during the last three decades as the animals came to the nearby locality in search of food.

According to review of the Forest Ministry, the big cats kill 25 to 40 people annually while two to three tigers fall victim of mass beating.

According to a study in 2004 jointly conducted by the United Nations, Bangladeshi government and Indian government, 440 tigers were found in Bangladeshi part of Sundarbans, Forest Ministry sources said.

The largest habitat for the Royal Bengal tigers is the Sundarbans, a vast stretch of mangrove swamp, lush forested islands and small rivers.

Experts believe just 5,000 to 6,000 Royal Bengal tigers are left in the world, down from around 100,000 in 1900. Most of them are found in India and Bangladesh.