1)madatory optional subjects bringing in student edit
2)miscellaneous work=>edit shows header name,teacher assignment index shows master class,(bringing relation all for that)
validation on master teacher if teacher name name already exist with master class
3)in master teacher, master class added and assigned as class teacher bring to student info
4)assignmnet sectin modified,get subject based on master class, get teacher based on subject
5)gdrive pdf upload not worked
6)bring assignment info to student info
7)disable multiselct check box on edit (doing)