Yes sir, i understand your query as it is as follows:

OPGL means general category girls quota in UPSEE .

OPAL means general category for all quotas in UpSEE

WHILE OPEN CATEGORY FOR BOYS AND GIRL are included in OPAL.

UPSEE 2019 (Uttar Pradesh State Entrance Examination) is conducted by Dr. A.P.J Abdul Kalam Technical University ( AKTU ), U.P. each year for admissions to under graduate engineering courses.

All of them have the six alphabets .The first two letters represent your state

i.e. if HS means HOME STATE(UP) & AI means ALL INDIA ( other than UP)

The two middle two alphabets represent your category i.e. BC means OBC ( OTHER BACKWARD CLASS ) ,SC means SCHEDULE CAST , ST means SCHEDULE TRIBES ,OP means OPEN CATEGORY ( GENERAL CATEGORY).

The last two alphabets represent your SUB category like i.e. GL means girls category , AF means Armed forces , FW means FEE WAVIER , NO means NO Sub Category .

Now , coming to the categories which are mentioned in the question :

1.HSOPFW: Home State Open Category (General category) Fee Wavier . means candidates of UP which belong to the general category but have fee wavier condition.

2.AIOPNO : All India Open Category (General) NO Sub category , means candidtaes who belong to the states other than UP and have no subcategory .

3.HSSCGL : Home State Schedule Cast Girls , means the girls which are from UP and belong to the Schedule Cast.