Hello Ayush !

Set can be defined as the collection of well-defined distinct object.

Types :

1. Singleton set
2. Finite Set
3. Infinite set
4. Equal set
5. Null set/ empty set
6. Subset
7. Proper set
8. Improper set
9. Power set
10. Universal set

If you want any further explanation on types of sets and their examples please feel free to ask.

Thank You !