Degree

No, B.Sc. Hons. in Computer Science is a three year course, while B.Tech CSE is of four years. Hence, both are not equal. B.Tech CSE or other stream students are eligible to apply for GATE, UPSC-IES, etc. While B.Sc. Hons. are not eligible for these. Hence, both the courses are not equal.

What kind of courses you wants to pursue? The major admission in Engineering, Medical, Design, Hotel management etc. Are based on entrance exams. While the traditional courses like B.A. B.Sc. B.Com B.A. BCA are based on Merit or entrance exams. So its better to write about the courses you wish to pursue for better response.

Hi, Yes, you can easily apply for Ph.D. as you have completed your Masters degree. I would suggest you few top universities for Ph.D. in India. And the link I am mentioning all will give you deep insight to all your queries regarding edibility criteria, exams any conducted, fees and which is the best specialisation to do Ph.D. and universities to pursue. https://www.shiksha.com/ph-d-chp.

Please contact the respective authority via call or mail as they will guide you properly about eligibility criteria like age, etc.