My kid is 4. 3 years old. she is not

My kid is 4.3 years old..we shifted to Gujarat recently from Chennai..we.dknkow to speak Gujarati or hindi..she is not socializing with others.. fear of facing others even at her age group..if she likes someone she is ready to play with them..but if she doesn't like them, she won't.. otherwise if someone comes to my home she is ready to share her toys..she is not playing inthe park area at the school..she will play inside our apartment only inthe presence of me or my hubby..that too if someone come across to play slide in the queue , she won't continue her play..she will stop playing..but otherwise she is very brilliant..Reached her milestone at the right time..her class teacher also said that she is not talking inside the class..if she wants something , then she will open her mouth..she hates loud noise or shouting by other kids..but she will listen and watch everything happens in the class room and used to imitate..what may be reason for her behaviour..she sometimes beat and pullhair