I want to know the answer to the following question:
What is the first Indian text to mention iron?
All the background I'm provided with is that "The archaeological Painted Grey Ware culture, which flourished in the Haryana and western Uttar Pradesh regions of northern India from about 1100 to 600 BCE, is believed to correspond to the Kuru and Panchala kingdoms.". Is that enough to answer the question?
Answer: no