I've got a rank of 54671 in VITEEE 2019. For what all streams am I eligible to get into preferably at the main campus?

Competition for VIT Vellore CSE branch is really high. Safe VITEEE rank required for CSE is within 1500 to 1700. However, if your rank is more than, then you can opt for CSE with specialisation branches available at VIT Vellore.

The difficulty level of VITEEE aptitude questions mainly ranges from easy to moderate. Questions are mostly asked on basic logical reasoning, including series completion, blood relations, directions, etc.

The VITEEE English section comprises questions related to short passages, lines of poetry, basic grammar, vocabulary. A total of 5 questions will be asked under this section. 

Current electricity, electrostatics, magnetic effects of current, and optics have the maximum weightage in Vellore Institute of Technology Engineering Entrance Exam- VITEEE.

Yes, but only specific branches like biotechnology, bioengineering, biomedical engineering, etc. They must meet the requirement of studying - BPCEA version of exam. Candidates must go through VITEEE eligibility criteria carefully.