The school admission in Kolkata usually starts in November or December for the next academic year i.e. June. Exact dates may differ from school to school and board to board.

The age criteria for school admission in Kolkata is typically 3 to 4 years for kindergarten and upto 6 years for class 1. 

Research the school, its admission timings, fill up the prescribed application form with the required documents in the given format, and attach the same. The eligibility criteria have to be met, along with the deadlines; prepare for the entrance exams or interviews if required for admission into schools in Kolkata.

The last school admission date for Kolkata differs from school to school and board to board. It ranges from February to April, though the dates need to be checked on each school's website or personally at the school.