Technical questions were really basic and aptitude test was really easy.

Interview was mainly based upon project and nothing else.Only kind of project you have done and your contribution was
asked.

HR was really simple with questions like why do you want to join Bajaj? and of the same level.

Do study topics like thermodynamics, automobile engineering,strenghth of materials and theory of machine.Be clear about
your summer project and your work contribution in it.

It was really easy once written got cleared only interview and that too it was not technical so just study basics for the
technical and quantitative will be generally easy.