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The selection of candidates for Ab-initio (PPL) to CPL Course at Indira Gandhi Rashtriya Uran Akademi, commonly called IGRUA is done as per merit compiled after Written Test, Pilot Aptitude Test and the Interview. Written test is two hours test consisting of questions on General English, Maths, Physics and Reasoning (10+2 standard). The successful candidates in Written Examination undergo Pilot Aptitude Test and Interview. A merit list is prepared for different categories of candidates as per GOI guidelines and the shortlisted candidates are issued Instructions to join in batches for effective utilization of IGRUA resources. Refer: http://igrua.gov.in/Selection Procedure.htm

Admission to the post graduate programme in medical microbiology will be based on the area of graduation in any of the subjects such as MBBS, BDS, B.Pharm, ayurveda medicine, homeopathy medicine, physiotherapy and B.Sc nursing etc. Apart from this, candidates who have completed graduation in any of the science subjects are also eligible to apply for this course. Candidates should obtain a minimum of 55 % aggregate marks in graduation from any university recognized by UGC. Candidates belonging to reserved category need to have 50 % marks only. Apart from these, candidates should have studied physics, chemistry, zoology or botany in the Bachelors degree, as well as higher secondary board examination.
Please refer to the link provided below for a list of entrance exams for M.Sc. courses and requirements to qualify in these exams. You can refer to the 2nd link for tips and strategies involved in preparation for these tests.
Link 1:https://www.shiksha.com/science/articles/top-bsc-msc-entrance-exams-in-india-blogId-13484
Link 2: https://www.shiksha.com/science/articles/how-to-prepare-for-top-msc-entrance-exams-blogId-13489

There are quite a few law colleges in Pune.
To classify as 'Best' is relative.
Further being from ILS Law College, I have a personal bias in favour of ILS Law College, given its prestige and the fact that it is an age old institution which has contributed to the academia through the indispensable scholarly works of Dr. (Prof.) S.P. Sathe and legal profession through legal luminaries like Justice Y.V. Chandrachud and Justice P.B. Gajendragadkar, to name a few from the ocean of alums.
Nonetheless, a few colleges that can be looked up to are Symbiosis Law School, DES Shri Navalmal Firodia Law College (commonly known as FC Law College), Bharatiya Vidyapeeth Law College (New Law College) and Modern Law College.