It's normal... Don't worry about tooth position now.. It will take its place in future.

Hello ma'm, Don't worry about it. Although the permanent central incisor  tooth is erupting behind the primary or milk tooth I. e central incisor, then it might be having 2 possibilities as..... 1.There might be root piece or remnant of milk tooth & it requires in office consultation & small tooth xray called iopa for exact diagnosis. 2.There might have lack of space for the same preventing the eruption of permanent tooth at the desired position& can be confirmed by check up & small tooth xray called iopa for the same.

Need not worry. You can visit an orthodontist who will examine your child and guide you better.  There are certain interceptive measures also that need to be taken in children so that their dentition remain in proper alignment.

Don’t do anything now It is normal When all permanent teeth erupted then we can do further treatment if required

It's normal, the tongue would take care the rest of the job. Visit a dentist for a regular check up.

Hello, There could be a couple of possibilities example there is crowding in the lower jaw already hence, no space for permanent central incisor to erupt in it's actual position or if there is no crowding then also, the normal path of eruption of permanent lower incisor is slightly lingual to the milk teeth and then eventually straightens in its original position. But for better diagnosis, need to see the kid clinically.