Regarding mindfulness during practice On personal  practice now no likes or dislike on thoughts  no thinking too. what is the stage of mindfulness?
This stage is basic but proper mindfulness, which is to be constantly maintained. The suttas say: 


  ...that bhikkhu is considered one who lives constantly
  contemplating... strives to burn up defile­ments, comprehends readily
  and is mindful in order to abandon all liking and disliking toward
  the world.
  
  Anapanasati Sutta