Hindi graded reading — curated sources

StoryWeaver (Pratham Books) (A1–B1) · Pratham Books nonprofit: leveled Hindi storybooks you can read and listen to, free.
Bloom Library (A0–B1) · SIL nonprofit: free leveled Hindi readers with read-along audio and downloads.
Free Kids Books — Hindi (A1–B1) · Free Hindi childrens storybooks in Devanagari, read online or download PDF.
HindiPod101 Reading (A1–A2) · Structured reading-comprehension lessons for beginners (freemium).
Wikisource HI (B1–C2) · Premchand, Bharatendu Harishchandra (public domain, ungraded).