No to become an accountant CA is not compulsory. People can become accountant by learning TALLY or BUSY softwares but if somebody wants to get into core of accounting Chartered Accountancy course is must or in other words if someone wants to become a CA one has to undergo the course of Chartered Accountancy which has 3 levels namely CA Foundation, CA Inter and CA Final and also 3 years articleship too under a qualified Chartered accountant.

For further details about CA Course you can take help from the below mentioned link:-

https://www.careers360.com/articles/4162-Chartered-Accountancy-CA

Good Luck