Salasar Techno - group B stock

I am stuck at Salasr Techno at higher levels , it will be moved by BSE into gRoup B stocks on August 8 . ( SOURCE:

My Question is will NSE also do it or not , what’s the usual practice . can i sell my NSE Salasar shares in BSE ?

Also if BSE has moved a stock from T group to B how soon can it again move it to T group ?