Data Science is a vast field with a number of jobs that you can go for. Thus, the prerequisites can also vary a bit based on the job role that you are going to opt for. The general prerequisites are as follows:
1. Knowledge of Maths and Statistics: Concepts like Linear Algebra, Probability, Calculus, etc
2. Knowledge of Programming Concepts: Concepts of object-oriented programming and also the ability to code in programming languages like Python or R
3. Knowledge of SQL: Ability to write SQL queries and insights about basic SQL concepts
Other important concepts can be learned during your journey in the field of Data Science. If you want to start learning it, you can go through our list of resources.