Hello Priyanka S

As per Official Announcement Yes it is mandatory for all the student of ICSI Board to attend the mock test of CSEET who has applied for CSEET Entrance exam.

ICSI Conducts the CSEET Mock test to Familiarise Candidates with the rules of Examination.

No you cant give this mock test by using your phone. ICSI conducts the CSEET in a remote proctored Mode. all the students have to appear this test using SEB (safe exam Browser) in the laptop or desktop.

Thanks