Hello Rashid

Dummy schools, also known as Non-Attending Schools is a school where students are admitted to the same way as regular schools but they don’t have to attend regular school classes so that they can focus more on their JEE/NEET exam preparation.

So basically, in dummy school you don't have to attend any classes as like regular school, here they will only call you during your exams like class 11th and then for class 12th practical and boards exam. Else everything is same here they will ask you money for attendence and they will provide you fake attendance for the same as according to CBSE rule 75% attendance is compulsory for writing exam.

Dummy school mainly opt by the students who is preparing for jee or neet exam and the people who  want their more time in preparing for those exam.

So if you are also preparing for such competitive exams and wants to more focus on that particular exam then you can also go for that.

Hope this information helps you and for further doubt you can comment down.

All the best