Career

it depends on what kind of doctor you wanna become and what college u take admission in.
Like there is ayurvedic doc
a dentist
a MBBS doc
a physiotherapy doc
unani doc.
And if u do it from a govt. college it will cost u a lot less than a private college.

Dear raju kumar.Government jobs up to sixty years you will be safe and secure. in private jobs there is some sort of insecurity. private jobs you will get higher salaries some times. where as government jobs immediate growth you cannot find. if you do MBA logistics you will get promotion. all the best

Firstly u decide over in which field Your knowledge is good. Or go for aptitude test. Then only u can opt Your field. Because IAS is related to Administration field. After completing of IAS u may join Higher Govt. post like Commisdioner, Personnel Secretary of Ministers, and so on.
And wheres BCA is a IT field. U can become software engr. and can do job or can conduct Your own business.

You are advised to seek admission in second year of engineering through lateral entry admission offered by majority of Engineering colleges. In case you are not in position to do further studies then you are advised to do AMIE along with job for a good career.

1) if u miss B.Tech this year, don't stop study, do B.Sc and try for B.Tech. next year. by taking long term coaching
2) if done B.Tech, there is no need Masters
3) doing B.Sc needs MCA later
4) doing B.Tech or MCA or polytechnic diploma only make u engineer
5) if u r interested in computers, do BCA/B.Sc.IT

Search on google in a good physics website