A mini-book to the GK-2019 (The detailed one). It contains all the relevant topics and a brief introduction to every one of them but for better knowledge, one should be having the detailed edition. Good for keeping as a last minute revision notes.
For Rs.25/- it's a very good book that you could have with you. It is especially useful for students & current affairs enthusiasts. It's a tiny guide packed with all info on India from its history to current politics, sports, awards, economics, people and their names.