SharePoint Online column level permission

Jeyganesh As you know the answer there is no way you can apply column level security but you can write some business logic which will prevent happening the same.

I followed the approach you could try so :

1] Disable quick edit option

2] Give users only edit access

3] Create two columns Status and Status_BKP 

4] (Need to handled by your choice business logic handler Remote EH, Flow or Workflow ) Copy the Status Data to Status_BKP if only users who are intended users make the change.

5] If untended users try to modify then send them notification with appropriate reason

6] Control the at the form level but depends which version you are using modern or classic

I hope this gives you some pointer to do some workarounds.

5]If any unintended user try to