Being a soft-adventure sport, almost anyone in reasonable physical condition can go trekking. To get initiated into trekking begin with day hikes, returning to your starting point in the evening. Move on to a multi-day trek which is relatively easy, in order to get to know your ability and aptitude.
A basic knowledge of camp craft, map reading and first aid is essential before you go trekking. It’s a good idea to do an adventure course from one of the mountaineering/ adventure institutes in India. Get as much information about the trekking area as possible – the people, their culture, the geography, terrain, medical/rescue facilities and weather conditions – before you go.