[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Minerals and Metals in Ancient India](https://indike.org/pramana/ins.science.biswas-1996) › v2.c46.s3.7 # Minerals and Metals in Ancient India v2.c46.s3.7 Minerals and Metals in Ancient India v2.c46.s3.7 - **Language:** English ### [v2.c46.s3.7](https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3.7) That the śūdras should not be allowed to read the Vedas was almost fully accepted in ancient India. There was a cult of secrecy, of course nurtured by vested interests. The alchemical and Iatro-chemical research was marked by professional secrecy, and the astounding claims were made: - [Previous: v2.c46.s3.6](https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3.6) - [Next: v2.c46.s3.8](https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3.8) - [Up: v2.c46.s3](https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3) --- Source: [https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3.7](https://indike.org/pramana/ins.science.biswas-1996.v2.c46.s3.7) · Pramāṇa