Information Technology

Hi Swati,
AutoCAD's 3D is pretty archaic. The 2D is pretty simple to understand. Lines. That's about it. In their version of a 3D model, you can simply extrude your lines from the working plane to some other. It's non paramteric and not very easy to use. Honestly, I applaud you learning 2D first, but don't waste your time with AutoCAD for 3D. You can get a bit of a feel if you use Inventor or Mechanical Desktop (if it still exists) but I would recommend something along the lines of Pro/E or Solidworks for your 3D learning.
Standard 2D art focuses on the contrast, rhythm, scale and proportion of a drawing, whereas 3D art looks at the depth and sculpture or the drawing. Examples of 2D art are graphic design, digital imaging and fabric design. Examples of 3D art include animation, sculpting and metal work. The visual contrast between the two types of drawings is a 2D drawing is a flat drawing and a 3D drawing looks like it has jumped off the page.
Hope this information helps. Please feel free to revert.
Wish you luck.

Shakti, MBA IT is a combination of software and administration where as MCA degree is purely related to software. MBA IT facilitates you to have administrative job in IT field. MCA degree helps you to get in to the role of software professional. If you want to come in Management Line then you can do MBA IT, if you want to stay in technical then choose MCA.
Even pay packages differ for the two. MBAs are paid more and most of the top posts are managerial so MBAs have an upper hand.
For admission to MBA you need to be a graduate and clear CAT/ MAT/ XAT/ CMAT/ GMAT/ institution specific tests/ GDPI. For MCA, you need to be a graduate with Maths as a subject in graduation or 12th. Some institutions offer direct admission some have entrance test for admission.
Many good universities are around offering the two courses with good placements. Some even offer scholarships to their students