Short term

Hi Someraj,
It is difficult to suggest without you specifying your stream and interests. You can go through this page, use the filter to view various courses and colleges and see what interests you
https://www.shiksha.com/it-software/colleges/colleges-india.

Yes, you can apply in the certificate course or Diploma from NIFT.

Certain certificate courses after completing Bachelor of Architecture are listed below:
- Short-Term Course on Green Architecture and Carbon-Free Living
- Advance training in Building Science, - Advance training in Application of Computer Techniques in Architectural design Simulation
- Advance training in Presentation Graphics and Construction Technology
- Heritage Studies and Conservation
- Visual and Graphic Design
- Computer Applications in Architecture and Planning
- GIS and Multimedia Applications.

M.Sc in biotechnology of 2-years in any specific field is the best option to do.

Please refer to the link provided below for a list of public relation courses offered by various courses in India. There are over 41 Diploma in Public Relations courses in India. You should be able to navigate to a college of your choice using the filters on the web page. Please note that duration of these courses may vary. Duration normally varies from 1-2 years. Regards. https://www.shiksha.com/mass-communication-media/public-relations/colleges/diploma-courses-india.

Yes, Greek Wings Institute of Hotel Management does offer a Diploma in Hotel Management. This course is of 6 months duration. Basic eligibility to apply for this course is having a minimum pass percentage of 50% in class 10. Candidates must have passed Class 10 from any recognized board with English as a compulsory subject, appearing students can also apply. Admission is based on the marks obtained in class 10th. Regards.