Hi smile,
Refer below query.
SQL
CREATE TABLE #tblStudents(AdmissionNo VARCHAR(10),SName VARCHAR(20), FName VARCHAR(20))
INSERT INTO #tblStudents VALUES('R-1','ABC','SKY')
INSERT INTO #tblStudents VALUES('R-2','XYZ','ABC')
INSERT INTO #tblStudents VALUES('R-3','SKY','XYZ')
 
CREATE TABLE #tblExam(SetExamID INT,ExamName VARCHAR(20))
INSERT INTO #tblExam VALUES(14,'Nov')
INSERT INTO #tblExam VALUES(15,'Dec')
 
CREATE TABLE #tblSetMarks(AdmissionNo VARCHAR(10),SubjectID INT, SetExamID INT,Marks INT)
INSERT INTO #tblSetMarks VALUES('R-1',42,14,23)
INSERT INTO #tblSetMarks VALUES('R-2',42,14,23)
INSERT INTO #tblSetMarks VALUES('R-3',42,14,23)
INSERT INTO #tblSetMarks VALUES('R-1',43,15,24)
INSERT INTO #tblSetMarks VALUES('R-2',43,15,24)
INSERT INTO #tblSetMarks VALUES('R-3',43,15,24)
 
declare @StdID varchar(50)
Set @StdID = 'R-3'
select * into #TempMarkss
from (
    select *
    from (  select s.AdmissionNo,s.SName,[SubjectID],e.SetExamID,[Marks],ExamName
            from #tblSetMarks m
            INNER JOIN #tblStudents s on s.AdmissionNo = m.AdmissionNo
            INNER JOIN #tblExam e ON e.SetExamID = m.SetExamID
            where s.AdmissionNo= @StdID
            ) as tbl
            pivot (SUM(Marks) for [ExamName] in([Nov],[Dec])) as PVT
) as s
select AdmissionNo
    ,SName
    ,CONVERT(VARCHAR(20),SubjectID) SubjectID
    ,ISNULL([Nov],0) Nov
    ,ISNULL([Dec],0) Dec
    ,ISNULL([Nov],0) + ISNULL([Dec],0) as 'G Total' 
from #TempMarkss
union all
select ''
    ,''
    ,'Total'
    ,sum([Nov])
    ,sum([Dec])
    ,sum(ISNULL([Nov],0)+ISNULL([Dec],0))
from #TempMarkss
drop table #tblStudents
drop table #tblExam
drop table #tblSetMarks
DROP TABLE #TempMarkss
Output
| AdmissionNo | SName | SubjectID | Nov | Dec | G Total | 
| R-3 | SKY | 42 | 23 | 0 | 23 | 
| R-3 | SKY | 43 | 0 | 24 | 24 | 
|  |  | Total | 23 | 24 | 47 |