Look at the reasons why she is doing so... If there is screen time...make sure she is not watching voilence. Do not ask her...pitti Kar do..if something hits her...( If u r doing so) . Stern voice but firm No! Is a <u>must</u>

Be very stern that hitting is not acceptable and try to create an environment where its not allowed to hit or it will lose play time or privileges. Because every action has consequences

Hey tell him small stories and explain it's bad. Also does anyone nearby I'm the house or neighborhood hit.?? If yes then Keep the baby away ..

Let her know in strict words that this is bad. And do not in any way laugh or encourage her. Tell others in your family too to do the same. She will gradually learn that this is unacceptable