yes there are alot of grounds but since yours is a summer wedding i shall not recommend otherwise you and all your guests wil b very uncomfortable. With DHA community centre there is no restriction on how loud the music should be. With grounds, especially if they have an adjoining residential area, you cannot have your mehendi after 12 and yes there you need to have volume controlled as well. We were concerned with the timings at DHA but there are 2 options: either you book 9 to 12 or 10 to 1…for an additional no. of hours beyond that you could just pay Rs. 7,000/hr extra.
As for the cost, with summers and extra generator & air conditioning arrangement, cost per head would go slightly up. When booking grounds, there is a flat rate for that, depending on which area you are getting the ground in and for this you shall be dealing with the area authorities. Catering, decor, lighting and flowers shall be separate and shall b dealt by the caterer.