Dear Sahil,

Generally, Diploma admissions are taken on the basis of merit / Entrance exams taken by individual institutes .

Well , good percentage in class 10 will help you to get admission in good colleges for IT  diploma .

According to your ssc marks , you have moderate chances to get good  IT colleges for Diploma admission.

You can opt for some entrance exams by which you can confirm your chances to get admission in your desired colleges on the basis of merit.

Some of the well known entrance exams are given below:

• AP POLYCET
• HP PAT
• APJEE
• TS POLYCET

For more information regarding this ,refer to this link;

https://www.careers360.com/courses/diploma-in-it-information-technology

Hope this helps !

Best wishes !!