On your concern I will get the details about Common Admission Test (C-CAT) exam so that you can have idea about it.

Admission procedure
Admissions to all PG Diploma courses of C-DAC are done through C-DAC's Computerised Common Admission Test (C-CAT).

Candidates have to apply for C-CAT online. Every year, C-CAT is usually conducted in June/July (for August admissions) and December (for February admissions).

Exam pattern
C-CAT has three sections (Section A, Section B, Section C) of one hour duration each. Depending on the course(s) applied by the candidate, he/she will have to either appear for just one test paper (Section A) or two test papers (Section A and Section B) or all the three test papers (Section A, Section B and Section C). The medium of C-CAT is English.

Every section will have 50 objective-type questions of 3 marks each (maximum 150 marks for any one section).

Each objective-type question in C-CAT will have four choices as possible answers of which only one will be correct.

There will be +3 (plus three) marks for each correct answer and -1 (minus one) for each wrong answer. Multiple answers to a question will be treated as a wrong answer.

For each un-attempted question, 0 (zero) mark will be awarded.

Syllabus
TEST PAPER TOPICS
Section A English, Quantitative Aptitude, Reasoning
Section B Computer Fundamentals, C Programming, Data Structures, Data Communications & Networking, Object Oriented Programming Concepts, Operating Systems
Section C Computer Architecture, Digital Electronics, Microprocessors

Eligibility
Applicants of all courses will be eligible if they qualify in Engineering or equivalent courses such as B.E, B.Tech, 4 years B.Sc Engg., AMIE, AIETE, DoEACC B level from one of these areas Electronics/ Electrical/ Computer Science Engineering.

Applicants who have done PG in Engineering Sciences such as MCA/ M.Sc. Engg and M.Sc. with CS, IT, EE, Electronics, Instrumentation are also eligible.

Candidates applying for courses of PG Diploma in Healthcare Informatics, PG Diploma in Geo Informatics, PG Diploma Automation SCADA systems are required to select PG in Maths or allied areas such as Statistics, Applied Maths and also PG in Physics or Computational Sciences/ Post Graduation in Life Sciences/ Chemistry or Graduates with minimum 4 years in Medicinal, Biomedical or Pharmaceutical Sciences are also eligible.

Candidates applying for all courses need to have 50% of aggregate marks in their graduation.