Hi, In XAT previous papers I am just able to score between 25-30 marks. Please suggest some tips to increase my score, especially in quants.Also what percentile can I predict?

I just came to ask the same question. Looks like past year paper practice is the key :D

Practice past year XAT papers. Also, do not focus on scores and percentiles at this point of time. Just do your best

Don't focus on score now ,Try to practice last 10 year paper ,You will see improvement automatically. Rest depend on D day. All you can do is practice , so keep doing it.