How can i Add row No ?

hi every one i have this SQL query i want to add S.no through query beacuase i want to show in gridview.

select sub.SubDeptName,0 TargetCount, 0 ParticipateCount, 0 ParticipationNomination, count (EP.EID)UnPlannedParticipants from Employee_Profile EP,SubDepartment sub
where EP.SubDept= sub.SubDeptID and Ep.SubDept in (select distinct SD.SubDeptID from TR_Allocate_LineManager_D D, TR_Allocate_LineManager_M M, SubDepartment SD
where D.MID= M.MID and D.SubDept_ID= SD.SubDeptID) and EP.EID not in (select THRM.EID from TR_Set_Nomination_by_HOD THRM where THRM.EID= EP.EID and cast (THRM.Nomination_date as datetime)between '1/1/2019' and '3/31/2019' ) and
EP.EID in (select EID from TR_TRAINING_SESSIONS_D d ,TR_TRAINING_SESSIONS_M m, TR_TRAININGS TR where D.MID= m.MID and m.TRAINING_ID= TR.TID and TR.TRAINING_CATEGORY in (10,11,12) and cast(m.TRAINING_DATE as datetime) between '1/1/2019' and '3/31/2019' )
group by sub.SubDeptName

thanks in advance.

hi try this Query

select ROW_NUMBER() OVER(ORDER BY sub.SubDeptName ASC) AS Row# , sub.SubDeptName,0 TargetCount, 0 ParticipateCount, 0 ParticipationNomination, count (EP.EID)UnPlannedParticipants from Employee_Profile EP,SubDepartment sub
where EP.SubDept= sub.SubDeptID and Ep.SubDept in (select distinct SD.SubDeptID from TR_Allocate_LineManager_D D, TR_Allocate_LineManager_M M, SubDepartment SD
where D.MID= M.MID and D.SubDept_ID= SD.SubDeptID) and EP.EID not in (select THRM.EID from TR_Set_Nomination_by_HOD THRM where THRM.EID= EP.EID and cast (THRM.Nomination_date as datetime)between '1/1/2019' and '3/31/2019' ) and
EP.EID in (select EID from TR_TRAINING_SESSIONS_D d ,TR_TRAINING_SESSIONS_M m, TR_TRAININGS TR where D.MID= m.MID and m.TRAINING_ID= TR.TID and TR.TRAINING_CATEGORY in (10,11,12) and cast(m.TRAINING_DATE as datetime) between '1/1/2019' and '3/31/2019' )
group by sub.SubDeptName