how to know if my 3yrs old boy is autistic or not

A. See the basic things that we advise you to check is that there should be proper eye contact if there is no eye contact or your child is not even responding to its name not making an eye contact when you are talking then that can be a matter of concern in that case you can expect that your child could either be having a delay in the growth or it could be autism where also kids don’t respond to their name they don’t understand anything what you are saying they don’t pay attention to you don’t follow any simple command or what you say