Kya ye compulsory hai ki his school se 11th ki hai usi se 12th Karna hai??? Urgent please tell me..

Kya ye compulsory hai ki his school se 11th ki hai usi se 12th Karna h

1.	Kya ye compulsory hai ki his school se 11th ki hai usi se 12th Karna hai??? Urgent please tell me..
Answer» Yes