Saral Chamatkari Ratna Vigyan Ratna Vigyan is hindi book on the subjects like gems and gemology. This carries lot of details on different type of gems, favorable and unfavorable gems, mines of different type of gems, use of different type of gems in ancient times, use of different gems as per lagna chart, qualities of different type of gems, etc...
A handy and an easy with full procedure of Hawan (Yagya) with the list of particulars needed in the Yagya. This book was published keeping in mind, the use of a common man. A normal person can easily perform the yangya karma by this book.
