After 10th

Diploma in Business Management/Administration - this one could be your choice of studies.

Yes, you can do Diploma in Hotel Management.

Hello Sidana,
If you want to do the Diploma in computer science and it has more scope to get better placement after completion of your graduation. Otherwise, if you study +2 (MPC) after tenth later, you are eligible to do the B.Tech (CSE), By doing +2, you get more knowledge about maths and physics, & vice versa benefits. Both the courses have the pros and cons. So, you can decide based on these.

If you are pursuing diploma in mechanical engineering then you get jobs in mechanical fields like automobile, production, maintenance etc. There are lots of opportunities available in engineering field. If you pursue B.Tech after your diploma then you may get more opportunities and good career start after B.Tech.

Hello Sahil,
Of course, yes.

There are no coaching institutes of CS after 10th.
The Company Secretary course cannot be pursued just after 10th. The minimum educational qualification required to be eligible for the course is +2, from a recognized board of studies.
The course is divided into three stages:
Foundation Program
Executive Program
Professional Program
Candidates who have passed +2 level of examination have to enroll for the Foundation program which is followed by the Executive and the Professional program.
Candidates with a Bachelor's degree in any stream, except fine arts, can enroll directly for the Executive Program.

Hi,
Yes, if you are not interested in completing HSC education then you can consider Diploma courses.
Kindly visit the link mentioned below:
https://www.shiksha.com/ for various options.