There is no scientific evidence to support the existence of parallel worlds. However, if we consider the concept of parallel worlds from a fictional standpoint, here are some possible ways a person could go to a parallel world:

Through a Portal
- In many works of fiction, parallel worlds are accessed through portals or gateways. These portals can appear in different forms, such as mirrors, books, or magical artifacts.
- To access a parallel world through a portal, one would have to find the specific portal that leads to their desired world and activate it.

Through Time Travel
- Another way to access a parallel world is through time travel. Some works of fiction suggest that changing events in the past can create alternate realities or parallel worlds.
- To access a parallel world through time travel, one would have to travel to a specific point in time and make a different choice or take a different action than they did in their original timeline.

Through Teleportation
- Teleportation is the instantaneous transfer of matter from one location to another. In some works of fiction, teleportation can also be used to travel between parallel worlds.
- To access a parallel world through teleportation, one would have to find a way to control their destination and ensure that they are traveling to a different world, rather than just a different location in their own world.

Summary of The Adventure - Class 11, English
- The Adventure is a short story by Jayant Narlikar about a man named Sadao who discovers a way to travel to a parallel world.
- Sadao is a scientist who has been working on a machine that can detect parallel worlds. One day, he accidentally activates the machine and finds himself transported to a parallel world.
- In this new world, Sadao meets a woman named Gita who is in a similar situation. Together, they explore the new world and try to find a way back to their own world.
- Eventually, Sadao and Gita find a way to return to their own world, but they are left with a sense of longing for the world they had visited.

Overall, the concept of parallel worlds is purely fictional, and there is no known way for a person to actually travel to a parallel world. The Adventure is a work of fiction that explores the idea of parallel worlds and the human desire for exploration and discovery.