[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) › c2.184 # Yantras or Mechanical Contrivances in Ancient India c2.184 Yantras or Mechanical Contrivances in Ancient India c2.184 - **Language:** English ### [c2.184](https://indike.org/pramana/ins.science.raghavan-1952.c2.184) After speaking again of the \*Bījas\* or constituent elements and the wonder and pleasure of these yantras, Bhoja refers to the \*Sūtradhāras\* or chief architects who do these; their qualifications are set forth as: (1) traditionally handed-down knowledge, (2) skill combined with schooling under masters, (3) practice and application, and (4) imagination. (85-87). - [Previous: c2.183](https://indike.org/pramana/ins.science.raghavan-1952.c2.183) - [Next: c2.185](https://indike.org/pramana/ins.science.raghavan-1952.c2.185) - [Up: c2](https://indike.org/pramana/ins.science.raghavan-1952.c2) ## Cites (1) - [Samarāṅgaṇasūtradhāra](https://indike.org/pramana/in.art.silpa.samaranganasutradhara) — Bhoja, Sanskrit --- Source: [https://indike.org/pramana/ins.science.raghavan-1952.c2.184](https://indike.org/pramana/ins.science.raghavan-1952.c2.184) · Pramāṇa