Hi Sahil, It's approximately 7 km, and takes about 4 hours to reach the top of Triund hill. During the month of December, many first-time trekkers and college-goers visit Triund. Since it's an easy trek, cold weather is not much of a deterrent for Triund trek in December.Here are few suggestions and packages curated by real travelers on Tripoto.
Please take a look. Thanks!