Admission procedure for prekg and grade1

Hi all,
I am new to this forum. I would like to know schools which has both prekg and grade 1 for my sons, one is 4yrs and the younger one is 2.5 yrs. As my huasband stays in dubai iam planning join him in sep. what we came to know is that few schools gives admission in july also.if it is so, how should we proceed. friends pls help me out to find a good school and the admission procedure.:wave

hemalatha