The passing criteria is really low, achieving this will not be a problem. You have to score at least 33% in every subject, out of 75. If you successfully receive this score, you will clear your first year.

If you scored lower than 33% in any one of the subjects, your promotion will be stopped. You then have to give ER (Essential Repeat) the following year, which is in your 2nd year.

It is quite possible to give ER for only 4 subjects. If it was more than 4 then you will fail and have to repeat the year again.