USA

Hi Sudhanshu, plenty of M.Arch courses are available in USA. A number of top rated universities as well as private architecture schools offer the M.Arch programmes which are accredited by National Architectural Accrediting Board (NAAB). Depending on the university and coursework M.Arch programmes may be of 2 years or 3 years.
You must be aware that these programmes consist of course work in designing, building science, structural engineering etc . plus elective courses. You may furthur specialize in urban planning, landscape architecture, etc. Some well known colleges in this regard are Boston Architectural College, Florida A&M University-School of Architecture,Harvard University-Graduate School of Design and Pratt Institute-Graduate Architecture and Urban Design (GAUD)
Admission requirements vary so you must check individual college websites. Submission of portfolio is also required hence prepare accordingly. Being an international student you must give GRE for some colleges and additionally IELTS/TOEFL will be required.
Hope this helps. Feel free to write back for further queries.

Hi Sudhanshu, architecture graduates have plenty of options available. Either you can opt to study Masters or embark on a new career right away. A bright career will depend on your skills and potentials.
Before opting for a career you must decide whether you want to be work in commercial architecture sector or residential architecture sector. Career options will differ in these two sectors accordingly. Since the job market is extremely competitive, you must choose an area which is demanding.
To further help you deciding which career fits you best you should know that commercial architecture involves design and creativity in creativity in skyscrapers, hospitals, malls, and other corporations. Residential architecture involves designing a new home ( a dream home), sky-high apartment building or family homes.
You may also opt for a career in restoration which will require you to restore historical monuments and ancient buildings.
Further, if you pursue a Masters you may opt to be a architectural consultant in future.
Hope this helps. Feel free to write back for further clarifications.

I'll give you some data after that you can decide which one is better. Let us compare Harvard University USA and IIM Ahmedabad. Both are in the rank one position in their respective countries.
Fees
The minimum amount to do MBA from Harvard is around RS 60-70Lakhs and from IIM it is around Rs 20-30Lakhs including all fees and stay.
Placement
The average package of Harvard is Rs 76lakhs and IIM is Rs 26lakhs. Some few will get international placement form IIM where the salary will be very high. But the probability of International placement of IIM is very low as compared to Harvard.
Also,the global exposure of Harvard or any other US universities is 50 times more than Indian Universities. So if you are good with the fees definitely go for Harvard or any best US universities but if you are not ok with the fees you can do your MBA from India. Both provides quality education only. The difference is their placement and global exposure.

Why most students follow the conventional path of studying in India or in the west? Why Indian students are obsessed with the west? Is it the 200 years of colonial mindset? Most of them struggle to survive in the west and work for peanuts in India.
So called 'average' and below 'average' students (although it is judged by marks to which I personally don't subscribe to) must look at countries like Bahrain and UAE for their destination for bachelor and masters degrees because the GCC region still the best for job opportunities, offering excellent tax free salaries, and most safe and secured high standard of living that one cannot expect in the west unless they are immensely gifted and possessing extra-ordinarily talented.