B.Tech Eligibility

You need to have pcm/pcb as subject combination in hsc level. u need to score 55% marks in pcm/pcb and need to crack the entrance.

Yes you will be eligible.

Yes you are eligible. Overall aggregate of 50% minimum marks in B.Tech is desired

for aeronautical average fee is about above 10-11 lac

first clear yr back

You should have scored min. 60% marks in 10+2 with pcm. Incase if your are confident enough that you will score the above said, then you can enroll yourself directly through the online process or you can come directly to chandigarh.
For online process you can visit www.cuchd.in

Apply for WBJEE and use this link to see eligibility criteria:
http://goo.gl/XFdfmm

Diploma holders are eligible for direct admission in second year of engineering degree through lateral entry. Counseling process starts in Jun month for regular admission and then lateral entry admission starts. You may go to your selected colleges and find out about the admission. Other way is to check the website of your state technical university for announcement of application submission. The fees vary from Rs. 50,000 per year to Rs. 1.5 lac per year depending upon college ranking and reputation.