When I was stared to prepare for nda 2 2020 exam I dont know how to prepare for it because it is corona time so I started searching for online best app for competitive exams.along with lot of stupid thing I got this diamond app to me .in it I have being listening live classes, exams , paperwork etc.it helping me mentally souch . so the one who started any competitive exams they should compulsory prefer it . trust me iam saying with experience.you also get the notes if you could register in to it
So dont leave it to get it( your preparing field) .thank you one and all