varanasi the recent evidences discovered from sonbhadra and chandauli districts prove that the invention and use of iron is indigenous to india as against the popular belief that the iron and techniques came with the aryans renowned scholar of archaeology and retired professor of banaras hindu university vibha tripathi said on saturday she was delivering a lecture on iron age on the fourth day of the ongoing 10day workshop for appreciation of the archaeology and culture organized by the regional office of archaeology department of culture for public tripathi said invention of iron using techniques that played a major role in the second urbanization and allowed the people who till then were involved in agrarian pursuits to indulge in other activities of life the development of fine arts music and literature can be owed to the beginning of the use of the iron tripathi said the excavations are rural sites yet these indicate the advance mental stage those people had the lecture was attended by students and othersdiscussion kashi chapter of marwari yuva manch will hold a discussion on sunday at tridev mandir on the subject possibilities for youths in the business and industries of purvanchal the discussion will see a host of leading businessmen of the region