How to pass parameter to c# method calling in javascript.

How to pass parameter to c# method calling in javascript.
My code is like this .
                objTotalInclusive.value=TotalAmtInclu.toFixed(2);  

                objRoundOff.value= Math.round(TotalAmtInclu);

                var wordsnum= objRoundOff.value;          
               
                var objwordstonum =document.getElementById('<%=lblNumSpelling.ClientID%>');
                var objwords = '<%Numbe ...