I have math +bio subject in class 12 . I want to know that can I give a neet examination and can I take government college for mbbs ??

Hello

It's completely ok even if you also have maths.
But,
Do you have both maths and biology as your core subject? Or you have biology as an additional subject?

Anyway, even if you have biology as an additional/optional subject, you are still eligible for neet examination with it.
Here's the eligibility criteria for NEET :-

-----------)Qualification required:-As per Neet eligibility to be eligible you must be either appearing for 12th board examination or should have passed 12th board examinationwith physics, chemistry ,biology/biotechnology and English as core subject.

Important Note :- Students who have passed Biology as an additional subject are also provisionally eligible for neet until Supreme Court gives its judgement.

-----------)Percentage required:- You must get

• at least 50 % in aggregate of PCB i.e Physics, Chemistry and Biology/Biotechnology in 12th examination if belongs to general category

• at least 40% in aggregate of PCB if belongs to st/Obc/ Sc

• at least 45 % in aggregate of PCB in case of pwd candidates to be eligible.

-----------)Age limit:-to be eligible for neet one has to be at least 17 years old or more by 31st December in the year of appearing for the examination i. e 31st December 2021 in case of neet 2021, no upperage limit as of now.

So, if you fulfill this Criteria then you are eligible for Neet examination and after qualifying get admission in  Medical colleges including government ones as well

For detailed information about neet examination eligibility go through our page for which link is provided below; -
https://medicine.careers360.com/articles/neet-eligibility-criteria

Thank you