Bachelors

Hi Mahesh,
Aeronautical engineering is one of the most challenging branches of engineering. It has a wide scope of growth in the field of engineering. This field is concerned mostly with the technical as well as the mechanisms of the flying aircrafts. This is an emerging field. This field deals with the development of new technologies in aviation and defence systems. This field mainly consists of the construction, designing, working, testing, operation, maintenance of the space craft's, satellites, missiles, space vehicles, etc.,
These are the top Aerospace/Aeronautical colleges in India
1.Indian Institute of Technology Bombay
2.Indian Institute of Technology Kanpur
3.Indian Institute of Technology Kharagpur
4.Indian Institute of Technology Madras
5.PEC University of Technology , Chandigarh
6. Bengal Engineering and Science University , West Bengal
7.Manipal Institute of Technology, Karnataka ,Manipal
8.Sathyabama University ,Chennai
9.Acharya Institute of Technology ,Bangalore
10.Amrita School of Engineering ,Bangalore
For admission in a bachelor's degree, you need to complete 10+2 examination with science subject such as physics, maths and chemistry. For IITs, It is mandatory to qualify in the Joint Entrance Examinations (J.E.E). The duration for this course is 4 years.
Some of the exams are:
UPSEE,
SRMEEE,
CET,
COMEDK,
KCET, ,
EAMCET,
MPPEPT,
KEAM,
GPET,
BITSAT.
etc.
Also, some engineering institutes conduct their own entrance examination for admission. Below is the link for institutes offering engineering. You can refine the list as per your branch and city preference.
https://engineering.shiksha.com/be-btech-courses-in-india-ctpg?sort=none&nl=0
For your preparation, you can join a good coaching institute as these coaching institutes will prepare you for not only engineering, but for your 12th as well.
For the list of coaching institutes, kindly refer to the below link:
https://testprep.shiksha.com/iitjee-entrance-exams-coaching-classes-in-india-categorypage-14-48-836-0-0-1-1-2-0-none-1-0#cateSearchBlock
However, there are few question which one should ask the coaching institute before enrolling. For the list of questions, refer to the below link :
http://goo.gl/BsFf9F
Hope this information helps. Please feel free to revert.
Wish you luck.

Entrepreneurship is one's ability to keep their business surviving in the market with high competition. If you own a business or run an small organization or a leader of a group then entrepreneurship is your capacity, your willingness, your passion to grow your organization or business as a whole.
To be an entrepreneur you will need capital. you will need a plan, some resources. you will need to define what kind of entrepreneur you want to be. What business you wanna start?
as such, there is not mantra to be an entrepreneur. there are lot of things that you will need to work upon.
try pursue a master's in entrepreneurship.
hope this helps.
Thanks