How to create an object of a class dynamically or in generic

Question

I want to create object of a class in generic or dynamically based on a string value.

string clsName = col.className.ToString();

Here clsName will have the class name

instead of hard coding below statement I need to create the object based on the clsName TestTradeAllyInfo objTestTradeAllyInfo = new TestTradeAllyInfo();

Please help, Thanks in advance.