Hi

No, there will be no problem and it's completely legal

This is because,

You haven't given both the boards at the same time. It would have been illegal if you had given two board exams in the same year but that is not the case with you , first you passed with PCM and in 2017 and then again you passed 12th in 2019, there's nothing illegal, it is completely legal and you will not face any problem

To help you further,

List of some of the top courses after 12th biology  is provided below :-

----------) MBBS/ Ayush courses( Ayurveda i. e BAMS , Unani i.e B. U. M. S, Siddha i. e BSMS, and Homeopathy i.e BHMS )  :- These are the courses which you can go for if you want to become a doctor. Out of these  MBBS is undoubtedly the best option in all aspects i. e skills you acquire during the course/pay scale/career and growth opportunities etc. You can go for BAMS to become Ayurvedic doctor and BHMS to become a homeopathic doctor . You can do B. U. M. S  i. e Bachelor of Unani Medicine and Surgery to become Unani practitioner,   Admission in all these is through NEET about which you can know in detail at https://medicine.careers360.com/exams/neet

----------) BDS i. e Bachelor of Dental Surgery :- The course you need to take in order to become a dentist. Admission is through NEET, details are at:- https://www.careers360.com/courses/bds-bachelor-of-dental-surgery

----------) BVsc i. e Bachelor of Veterinary Science :- If you want to become animal doctor i. e a Vet then you need to do BVSc. Admission is again through neet, though some states have their own entrance. For example, Rajasthan conduct its own state level entrance i. e RPVT. For details check out :- https://www.careers360.com/courses/bvsc-bachelor-of-veterinary-science

----------) Bsc Nursing :- It is evergreen course because with increase in need of doctors we needs more and more nursing staffs . Admission is on the basis of 12th marks /state /college level entrance exam like AIIMS conducts its own nursing entrance exam. State like Maharashtra accepts NEET for Bsc nursing. For details visit :- https://www.careers360.com/courses/b-sc-nursing

----------) B Pharma :- it is a 4 year course which you learn drug safety,medical chemistry etc and it is the best option if you want to become a pharmacist. For detailed information regarding b pharma visit https://www.careers360.com/courses/b-pharm-bachelor-of-pharmacy

----------) Bachelor in Physiotherapy:- it's a 4 year course in which you get to learn how to cure disorders by applying physical forces  mechanical pressure on special specific points in our body etc. For complete details about BPT, visit https://www.careers360.com/courses/bpt-bachelor-of-physiotherapy

----------) para medical Courses like

• B.Sc Optometry

• Bachelor of Occupational Therapy

• B.Sc Radiology

• B.Sc in Medical Technology

• B.Sc in Medical Laboratory Technology

• B.Sc in Speech Therapy

• B.Sc in Anesthesia Technology

• B.Sc in Ophthalmic Technology

• B.Sc in Radiography and Medical Imaging

• B.Sc in Dialysis Technology

• B.Sc in Allied Health Sciences

• B.Sc in Radiotherapy

• B.Sc in X Ray Technology etc

----------) Bsc agriculture :- you get to learn about food production , modern techniques for the same etc. ICAR is national level entrance exam for Bsc agriculture. For details visit :- https://www.careers360.com/courses/agricultural-science-course

---------) Conventional Courses like Bsc botany/Zoology etc then go for Msc and then clear UGC NET to  be eligible for assistant professor / Junior Research Fellowship.

You can get complete list of courses  after 12th biology at https://school.careers360.com/articles/courses-after-12th-in-biology

.

Thank you