SQL Server - Updating multi rows in data table with Update Stored procedure

My requirement is to update multiple row in a table with update stored procedure.
my Table record is like below
Table name is MfHead

DespatchedFrom   ChallanNo         cnmtNo    CnmtDate    Package
Delhi 1212 101 01/01/2026        5
Delhi 1212 102 02/01/2026 8
Delhi 1212 103 02/01/2026 8
Delhi 1212 104 05/01/2026 5
_________________________________________________________________________________________
I need to update cnmtno    cnmtdate   and package  all four rows

where despatchedfrom='Delhi' and ChallanNo=1212

I'm updating through gridivew

You must have some unique field for each row or a set of unique fields to update row other wise all 4 columns will be update on you where criteria.
You can add column with RecordID auoincrement and then update on behalf of RecordID 

Thanks for reply
Ok If I give auto increment row id then how will be the query written in stored procedure
Pls give sum hints
thanks

This is the basic how to write Stored Procedure


CREATE PROC dbo.MYPROCEDURE


@ID int,
@cnmtno int,
@cnmtdate datetime,
@package int


AS


UPDATE [TABLENAME]
SET cnmtno = @cnmtno,
cnmtdate = @cnmtdate,
package = @package
WHERE despatchedfrom='Delhi' and ChallanNo=1212 and IDCOL = @ID