‘Ayurveda’ that is ‘Science of Life’ appeared first in :

Which of the following Gods is referred to as 'Ritasya Gopa' in the Rigveda?

In which Vedic text the term ‘Varna’ is found referred for the first time?

Which one of the following is oldest Veda :

The earliest evidence of the use of iron in India has been discovered from :

In the Rig Veda Samhita, use of the terms ishukrit and isukara referred to the maker of: