There are several different types of Indian outfits, and there no specific requirements for what types of outfits should be worn to which events. In addition, guests are certainly not expected to wear Indian attire. 
 Vidhi/Pithi Indian traditional, shades of yellow, orange Non- Indian options: Women: maxi dress, pastel color dresses Men: casual, polo and khakis. 
 Wedding Be bold, accessorize, no color restrictions Non- Indian option: Women: formal wedding attire Men: Semi formal (button down and khakis/slacks) or formal (suit and tie). 
 Reception Dress to impress Non- Indian options: Women: formal evening wear such as evening gown, cocktail dress Men: formal suit and tie, tuxedo

Yes, there is plenty of parking available at Hyatt Regency Grand Cypress Lot #7.