Hi Krutikashri, We hope you are doing well. Resume shortlisting is one of the most important screening rounds in Consulting and having a good resume is very important to get into consulting. Speaking of spikes, yes, it is important to have spikes in resume, but don't worry if you don't have spikes. Incase you still have enough time for your interview you can participate in some good case study competitions to get spikes and in case you have lesser time, focus on your strengths and highlight them accordingly in your resume. On Seekho's website there is a lot of content around creating a resume you can follow that and you will be good to go.
Any co-curricular activities, prizes etc. can also be seen as spikes if you don't have extra-ordinary academic records or internships. The most important thing is to present your resume in the best possible way. We hope this helps.