Hi aspirant

hope you are doing absolutely fine

Yes you can. That is possible if you apply for a diploma which is based on the standard. As in the diploma requiring your 10 + 2 certificates, you wont be able to give and fulfill criteria.

As you mentioned, you are in third year, so it would be easy for you if you do HSc from a private college.

Also try to apply in private HSC colleges as it will be give you enough time to read.

ALL THE BEST

hope it helps