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You can apply for a German visa basis the duration of the course.
Any course of 3 months should get – a Schengen Visa. Over 3 months should get – the German National Visa.

Students entering Germany with a national visa have to extend their stay with a resident permit in Germany for higher education from the Foreign Office. You need to do this when the entry visa is valid.

Make sure to go through the list of documents while applying for a visa.

You can go through the step-by-step guide: How to apply for a German Visa?

The Canadian visa application centers are partially functional for international students and family class applicants.

The country is inviting applicants from China, India, Morocco, Pakistan, the Philippines, Senegal, and Vietnam to apply for a Student Permit through the Student Direct Stream.

So, yes, you can definitely apply to fly in Fall 2021!

Not yet
The US embassies in India haven't opened yet

How to get a US student visa-

Apply and get admission into a SEVP Pay the SEVIS I-901 fee ($350) Pay the non-refundable visa application fee Schedule and make preparations for your interview

Yes, but they are subject to the local lockdown regulations of each region
So it’s best to check the UK immigration website for the latest information on dates and timings

The Canadian visa application centers are partially functional for international students and family class applicants.

To apply for the Canadian study permit, you will need-

Proof of acceptance Proof of identity Proof of financial support

90 days after you get the Short-term Visit Pass

Generally, after graduation, graduates can apply for a Short-Term Visit Pass after their student pass has been cancelled/expired This visa will allow students to stay in Singapore for an up to 90 days

The list of Ireland visa application requirements includes –

A letter of acceptance from a recognized school, college, or university. Evidence of your academic and English language ability Confirmation that course fees have been paid in full Proof that you have sufficient funds (usually €7,000) to support yourself during your stay Evidence that you or a sponsor have access to at least €7,000 for each subsequent year of your studies Verification of private medical insurance or EHIC possession An explanation of any gaps in your educational history Evidence of academic ability to pursue your chosen course Confirmation of your intent to return to your home country after leaving Ireland Two recent passport-sized photographs A passport that is valid for at least six months after the course will end

Learn about the entire visa process here

Basically, the UK government is going to check if you satisfy the following 4 conditions before handing over the visa to you-

You should have a university admit You should have enough money to support yourself You can speak, write, and understand English And you have consent from your parents to go (only for students aged 16 or 17)

If you’re studying in Australia for up to 4 months, you could get a Working Holiday Visa.

Most probably, if you have a degree from an Australian university you will be eligible for a post-study work visa.
For that...
What I would recommend is for you to start creating a strategy to achieve your goals

Research your industry in Australia.
Research what companies are looking for in an ideal candidate. And then start gaining experience in the Australian market as soon as possible.
Internships and part-time jobs in your industry are an excellent idea.

No, you will not need to provide this if-
You’re from an English-speaking country or
Have completed a qualification equivalent to a UK degree in an English-speaking country

The cost is AUD 620 + AUD 460 (if 18 and above) or + AUD 150 (if under 18)

Also-

Your academic transcripts Degree certificate, and A letter of statement from the university that has admitted you

29 to 42 days for students who want to pursue higher education in Australia

Biden has called for an increased number of visas for permanent, employment-based immigration
But until he actually does something, it's all speculation
It's best to be cautiously optimistic about this

If the summer program to study in Denmark is for more than 3 months (90 days, to be precise), you will need a visa.

For a residence permit, you will need-

An acceptance letter from your university Financial proof that you can support yourself Language proficiency in English, German, Danish, Swedish, or Norwegian Passport Photographs
It will take at least 30 days to process your application. So, it’s best to apply for your residence permit 3 months in advance.