# Nalandadata
### Verified, curriculum-aligned Indian STEM data for frontier AI labs
*Training ยท Post-training ยท Evaluation โ across reasoning, multimodal understanding, and document intelligence.*
๐ License our data ยท
๐จ Contact / request access
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Nalandadata builds high-quality, curriculum-aligned data sourced from **S. Chand** โ India's largest academic textbook publisher โ spanning all subjects, grade levels, and major Indic languages alongside English. Textbook content is structured, expert-authored, and verified, which makes it valuable far beyond education: reasoning chains, scientific diagrams, structured tables, and multilingual content that transfer directly to general-purpose model training and evaluation.
## ๐ฆ Products
### Datasets
| Dataset | What it is |
|---|---|
| [**NalandaJEENEETBench**](https://huggingface.co/datasets/Nalandadata/NalandaJEENEETBench) | 116,831 JEE & NEET questions with verified answers + worked solutions. **RLVR-ready** ground truth. |
| [**nalanda-image-qa**](https://huggingface.co/datasets/Nalandadata/nalanda-image-qa) | 22,000+ scientific image Q&A pairs from NCERT diagrams (physics, chemistry, biology). |
| [**DrishtiTable**](https://huggingface.co/datasets/Nalandadata/DrishtiTable) | 1,421 annotated tables for document AI / table structure recognition โ with a full **TEDS benchmark + leaderboard**. |
### Models
| Model | Result |
|---|---|
| [**nalanda-qwen-7b-grpo**](https://huggingface.co/Nalandadata/nalanda-qwen-7b-grpo) | Qwen-7B + GRPO on NalandaJEENEETBench: **+6.3pp** (vs โ16pp for naive SFT) โ verified answers make RLVR work. |
| [**nalanda-image-vl**](https://huggingface.co/Nalandadata/nalanda-image-vl) | Multimodal diagram understanding: **+9.3pp** over zero-shot. |
| [**DrishtiTable-Qwen2.5-VL-7B**](https://huggingface.co/Nalandadata/DrishtiTable-Qwen2.5-VL-7B) | Table recognition at **83.2% TEDS** โ beats GPT-4o on our benchmark. |
### Benchmarks & demos
- ๐ [**DrishtiTable Leaderboard**](https://huggingface.co/spaces/Nalandadata/DrishtiTable-Leaderboard) โ live TSR leaderboard ranked by TEDS.
- ๐ฌ [**Nalanda Live Demos**](https://huggingface.co/spaces/Nalandadata/nalanda-live-demos) โ try our models on STEM text & images.
## โ
Why it works
- **Verified ground truth** โ every JEE/NEET item has a checkable answer, enabling RLVR / GRPO pipelines that actually improve capability.
- **Expert-authored, structured source** โ reasoning chains, diagrams, and tables, not scraped web noise.
- **Multilingual, curriculum-aligned** โ English + major Indic languages across all grade levels.
## ๐ Licensing & access
We license datasets for AI training, post-training, and evaluation.