Bachelors

Since you don't have any Bachelor's background in Hindi it's hard to say. I would suggest IGNOU as it's relatively easy to get. But, it could be difficult to get admission in government colleges. But, enquire with individual colleges who have MA Hindi.

Yes, it is, but provided you study at a government recognized educational institution in UK, but have it verified with the college as well.

Yes, there are some chances. Let's hope for best.

IPSA-Indore Professional Studies Academy
MBKC-M B Khalsa College
OU-Oriental University
Devi Ahilya Vishwavidyalaya
Indore, India
BJMC-Bachelor of Journalism and Mass Communication
SABVGAC-Shri Atal Bihar Vajpayee Government Arts And Commerce College
SVVV-Shri Vaishnav Vidyapeeth Vishwavidyalaya
Private University.

June-july 2020 onwords.

M.Tech is completely a technical field in which you perform different experiments and compare the results and observe the behaviour. On the other hand, M.Sc. Is dependent on the theoretical parts. I would suggest you go for M.Tech if you had done B.Tech.

Yes, you can, Ayushi. A candidate who has studied Science ie. (Physics / Chemistry / Zoology / Botany / Biology / Biochemistry / Microbiology / Applied Medical Sciences / Biotechnology) or / Medicine / BDS/ Engineering / Pharmacy with 50-60%, he is eligible for taking admission in M.Sc. Forensic Science. The best institutes for doing this course are:
All India Institute of Medical Sciences
Lok Nayak Jayaprakash Narayan National Institute of Criminology & Forensic Science, Lovely Professional University, Jawaharlal Nehru Medical College
Gujarat Forensic Sciences University.

Hi Kanika,
I feel happy to inform you that you are absolutely eligible for applying to any Master's or Post graduate programme related to your subject or field of study at Uppsala University. You can get more details about admission requirements on clicking the below mentioned link:
https://www.uu.se/en/admissions/master/application/requirements/
Please go through it.

It happens in life at times that we are unable to score well. However, it does not mean that we should start from the back again. It is rather advisable to start from something new and be positive towards your future goal whatever you do.

You should start preparing for MBA. But focus mainly on BBA now because you will have to get good marks in graduation.