Career

Poznan, Warsaw, Wroclaw are Poland's most popular universities.

Biochemical engineering is a branch of chemical engineering that mainly deals with the design and construction of unit processes that involve biological organisms or molecules, such as bioreactor.

Read each and every NCERT subject book from class 6th -12th. Also, focus especially on your Bachelors' major subject.

Entrance exam which you need to write is either of these national level entrance exams such as All India Pre Veterinary Test (AIPVT), All India Common Entrance Examination (AICEE), Guru Angad Dev Veterinary & Animal Sciences University Entrance Test, etc.

You are eligible to do MBA after the completion of B.Sc. You are in a position to crack MBA entrance examinations easily because of your superior numerical and data interpretation ability as you are a mathematics graduate. If you can improve your verbal ability, you can crack CAT and have an excellent management career in any management function of your choice.

2.5 lakh per month will be the salary for highest post in IAS.

Every subject has its own importance. UPSC will test your knowledge on all topics. So, I can't say that law is beneficial or history is beneficial.