Unicode character replication MSSQL to MYSQL in Symmetric DS

I'm doing replication from MSSQL to MYSQL using symmetricds and it is working fine.

Now , the problem is:

In the SQL Server table , I have a column defined as NVARCHAR(20) which accepts unicode characters like Hindi language characters.

In MySQL, I have a column defined as VARCHAR(20) CHARACTER SET utf8mb4.

Whenever I insert any Hindi character in SQL server, it is not getting replicated in the MySQL table. It is just coming as '???' in MySQL.

Any idea's on how to solve this?