I want to thank Kiran Kumar Pasupuleti Sir, for the gate video lectures on discrete mathematics and algorithms. His videos on propositional logic are extremely good, and can help any gate aspirant, to understand that topic well. The test series by Gatebook is also having good questions, and one of the best test series in the market. Thanks to GateOverflow for providing a Platform where the tests of Gatebook were available. The way Kiran Sir teaches, is simple, and relevant to gate syllabus and helps a lot in getting a top rank. Thanks a lot to Kiran Sir and the team behind Gatebook for good contents.