After researching for ages I found the real study behind the famous tiger attack. Since some people wanted to know more about it, I thought I share it.
19th May 2004. A team rangers, along with five elephants, from Kaziranga National Park were locating a female bengal tiger, which was responsible for killing farm animals in the local area. The rangers trying to sedate the tiger to relocate it back to the wild. At first attempt of darting the tiger from 20 feet, the rangers miss. Which pissed the tiger off and she took a charge at the rangers. Jumping more than 12 feet, the tiger was able to injure one of the mahout (an elephant driver). The elephant (Joymala) responded on the attack of its master, and chased the tiger. The mahout was able to calm the elephant down. The mahout has some balls of steel, trying to deter the tiger with a stick. For the offical story and details of the whole event go to the link below.
http://www.wildlifetrustofindia.org/html/news/2004/040609_joymala.htm