Thanks for the reply.
I used the below case statement in my Select statement to get the starting day as Monday:
(CASE WHEN datename(dw,date) <> 'Sunday' THEN CONVERT(varchar(10), DATEADD(WK, DATEDIFF(WK, 0, date), 0),
103) ELSE CONVERT(varchar(10), DATEADD(WK, DATEDIFF(WK, 0, date), - 7), 103) END)
Thanks all!