UK

Hi Himani,
Every university has different admission requirements. What you should do is a very tough question to answer, to begin with you can start start checking university websites for the entry requirements, take your IELTS. Check UCAS website, you have to apply through the UCAS portal. They have mentioned the specific deadlines and you have to apply by these deadlines. See here:
https://www.ucas.com/

Dear Deepak,
UK Ph.D stipend varies. Don't expect funding from too many universities, most programs are funded by the students themselves with only 10% to 20% of the fund being provided by the universities. You may expect around GBP1200 to 1800 per month if you have been depending on the university.

Hi Pratap,
Some of the best universities in London for engineering and sciences are Imperial College London, UCL (University College London), King's College London and Brunel University.
USA is home to top ranking universities such as MIT, California Institute of Technology, Georgia Institute of Technology, Carnegie Mellon , University of California Berkeley, etc.

Hi,
Actuarial science professionals are in demand in both countries however Australia is a better option in terms of post study work options. If you want to work after studying then UK is not a good option. I will also advice you to check the SOL of the countries to know about the skill shortages.

Hello,
The UK has many good universities offering Astrophysics and related areas, you can see a list of these universities here https://www.findamasters.com/masters-degrees/astrophysics/?30gngS2
Many of them are top ranked so will offer a strong learning and study experience. Entry requirements will vary for each institute but generally you would need a high score in a Science and physics related degree and an IELTS of at least 6.5.
Regards
Sophie

Not necessarily, but if you are from schools like BITS Pilani or IITs, preference will be higher but there is no hard and fast rule as such. As long as you are a very highly academic student and have solid work experience, it does not matter where you do from Bachelors.

Hi Sarthak,
Coming from a biotechnology background will help since MBA programs are open to students from all discipline so they look for diversity but holding a Bachelor degree in any discipline to pursue your MBA is mandatory so it won't make a difference unless you have very high grades and an extraordinary profile. Remember that most MBA programs including the top ranked ones require work experience, GMAT scores and solid career goals/MBA essays based on which admissions will be given.