[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Yantras or Mechanical Contrivances in Ancient India](https://indike.org/pramana/ins.science.raghavan-1952) › c2.12 # Yantras or Mechanical Contrivances in Ancient India c2.12 Yantras or Mechanical Contrivances in Ancient India c2.12 - **Language:** English ### [c2.12](https://indike.org/pramana/ins.science.raghavan-1952.c2.12) But, whatever the cause of the material decline, Dr. Raghavan as well as Shri Dikshitar is convinced by the textual evidence that ancient India had once attained a high technological development, even in aeronautics. - [Previous: c2.11](https://indike.org/pramana/ins.science.raghavan-1952.c2.11) - [Next: c2.14](https://indike.org/pramana/ins.science.raghavan-1952.c2.14) - [Up: c2](https://indike.org/pramana/ins.science.raghavan-1952.c2) --- Source: [https://indike.org/pramana/ins.science.raghavan-1952.c2.12](https://indike.org/pramana/ins.science.raghavan-1952.c2.12) · Pramāṇa