School admission now

Hi

We will be moving to Bangalore from US in Jan. I am looking for admission in schools for my 3.5 and 6.5 yr old kids around Marathalli. My 6.5 yr old goes to 1st grade here. My question is will any school give admission to him now in the current yr and not for the next yr i.e 2nd grade because here the classes start in Sept and therefore he is only been 4 months into 1st grade here. Are there any international schools there that follow the same academic year as here i.e Aug-June? Would really appreciate your responses . Thanks.