Talking about amusement park if you are living in delhi then first name comes in mind is ADVENTURE ISLAND. It is one of the best amusement park that is located in Rohini region of the state delhi. The park has a lot of rides to go on like some of them is pendulum the first ride which you saw when entered in the park area. Then the z-force is their another is coloumbus, dirt bikes, Go carts, 360 dergee and alot of other rides also their where you can enjoy. Every year tourist from country and outside country when comes to delhi definitely visit this park as the connectivity to that area is very good developed. The security measures are also very good and can deal with any problem if occur.
I personally like this amusement park and also recommend you to go once there