Please keep the following things ready before you Apply.
Pasport Pic Size
Xth Certificate (File format : jpg, gif, png, pdf, docx etc)
XIIth Certificate : If Applicable (File format : jpg, gif, png, pdf, docx etc)
Graduation Certificate if Applicable
Xth Certificate (File format : jpg, gif, png, pdf, docx etc)
XIIth Certificate : If Applicable (File format : jpg, gif, png, pdf, docx etc)
Graduation Certificate if Applicable