Here's your query:
create table #t (FEID int, Student_Name char(4), Subject_Name char(5), Marks_Obtained int,
Result char(5), Result_Code int, NCID char(5), Exam_Name char(12))
go
insert #t values
( 2, 'roof', 'VB ', 100, 'First', NULL, '1234 ', 'ist semester'),
( 2, 'roof', 'VB(P)', 100, 'First', NULL, '1234 ', 'ist semester'),
( 2, 'roof', 'C(P) ', 100, 'First', NULL, '1234 ', 'ist semester'),
( 2, 'Amir', 'VB ', 100, 'First', NULL, 'nbb 8', 'ist semester'),
( 2, 'Amir', 'VB(P)', 100, 'First', NULL, 'nbb 8', 'ist semester'),
( 2, 'Amir', 'C(P) ', 100, 'First', NULL, 'nbb 8', 'ist semester')
go
declare @collist nvarchar(max)
SET @collist = stuff((select distinct ',' + QUOTENAME(subject_name)
FROM #t -- your table here
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
select @collist
declare @q nvarchar(max)
set @q = '
select *
from (
select
Student_Name, subject_name, Marks_Obtained, Exam_Name, Result, NCID, Result_Code
from (
select *
from #t -- your table here
) as x
) as source
pivot (
max(Marks_Obtained)
for subject_name in (' + @collist + ')
) as pvt
'
exec (@q)