Hello Aspirant,
Please refer to these YouTube channels for SSC CHSL preparation SSC Adda247, Testbook.
You can also check out Gradeup. It is known to be the best exam preparation app.
Hope this helps.
Thanks.
Application | Eligibility | Admit Card | Answer Key | Preparation Tips | Result | Cutoff
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile