Preschool in Adyar/Anna Nagar areas

Hello - We will be relocating to Chennai in a couple of months and are looking to settle in Adyar or Anna nagar. I would like to get my son enrolled in a good preschool.

I am considering Kidzee vs Little Millennium vs Eurokids. All of them seem to have good reviews. Any recommendations from parents of little ones? Will it be difficult to enroll if we can't relocate by Vijayadashami?

Thanks!