United Kingdom

The UK is an attractive destination for students from India. However, it was difficult for students to stay in the UK after finishing their course of study for a few years. Recently, the UK government has started to allow students for a 2-year Post Study Work Visa(PSW) after Undergraduation and Post Graduation for global students.
The comeback of this post-study work visa is a positive effort to allow students to glance for opportunities in their respective field of study. As the UK government quoted, "the brightest and best of students should not come here and do menial jobs." Students started their studies in the UK for Undergraduation and Post Graduation in year 2020 are the first to experience this comeback.
Now, the students can work or look for work up to two years after they have completed their studies. Later, on post study work Visa they are required to get a new line of work with a base compensation of £30,000 per Annum with Tier 2 General Visa support permits. Also, students pursuing Ph.D. are allowed to stay up to 12 months after completing their degree.
USA

In the USA, international students can stay up to one year on their F1 Visa as a part of Optional Practical Training (OPT). After the completion of the course, students are required to procure a job that is directly related to the field of their study within 90 days of graduation.
Pre-completion OPT and another post-completion OPT are two types of OPT. The pre-completion OPT allows students to work before the completion of their course or degree program.
Science, Technology, Engineering, and Mathematics (STEM) course students have an option to extend their OPT for an additional 24 months. It means that the students can stay up to three years in the US after the completion of their studies.
How to get an OPT permit?
To request an OPT permit, you need to ask the Designated School Official (DSO) at your university to recommend your case for OPT. A DSO assists and manages the status of international students. If you want to qualify, complete a certification from your university which includes submitting an OPT I-20 request form to the International Services Office. This form is available to download from your university's website.
Your university will then forward your request to SEVIS (Student and Exchange Visitor Information System), and upon successful completion, you will receive a newly generated I-20 immigration form.
New Zealand

Effective November 2018, the New Zealand Government made some changes after consulting the public.
- Students no more need to compulsorily have a work visa which is assisted by employers. This applies to all levels.
- Level four to six students can now work for 12 months with an open work visa.
- A student who is pursuing a level 4-6 or level 7 (non-degree) education and he/she completes his education by December 2021, the New Zealand Government would provide that person with a two-year open work permit after his/her course completion. Note: The student should be pursuing education outside Auckland.
- If a student completes his education before December 2021, he/she would be eligible for only 12 months of work permit.
- Some other changes are also made regarding courses in Auckland and other criteria.
- Level 7 and above students would receive a 36 months free post-course completion work visa.
- Those students who are pursuing a level 8 educational level have added advantage. The New Zealand government categorizes these candidates in the Long term Skill shortage List. Also, their partners can now apply for an open work visa in the country and their children can attend schooling for free.
All of these changes were made by the NZ government to help students in getting better industry-oriented learning and allowing them to work in New Zealand post-course completion.
The following data will help you understand the eligibility of an international student whose Visa is accepted by the New Zealand Immigration.
Study Level 7: Student “A” having (at least) a Bachelor’s degree and (at least) 30 weeks of course education in NZ is eligible for 36 months of open work Visa.
Study Level 7(Non-Degree): Student “B” having (at least) 30 weeks of course education in NZ is eligible for 36 months of open work Visa.
Study Level 4-6(One qualification): Student “C” having (at least) 60 weeks of course education in NZ is eligible for 36 months of open work Visa.
Study Level 4-6(Two qualifications): Student “D” having (at least) 60 weeks of course education in NZ is eligible for 36 months of open work Visa. Note: 60 weeks of education includes both the qualifications, the qualification other than the first qualification should be of greater academic level.