If you consider CTC than around 40%+ students get 20+ but if you consider gross or in-hand salary than around 7–10% people get that much package. Most of the companies offer 20+ as CTC like Microsoft, Oracle, Goldman, IBM, Apple, Paypal, Uber, Nasdaq, Yodlee, Flipkart, Directi etc. but only Goldman, IBM and Nasdaq pay 20+ as Gross/in-hand.
All the things said above are applicable for 2018 pass out batch(M.Tech CSE) only. But year-by-year things won’t change much. It will be less or more same.