Vidya Vardhak Yugal. (VVY01) Rudraksha Combination for Education (Vidya Vardhak Yugal) This Rudraksha combination (Yugal) improves the level of concentration, retentive power and restrains the mind from being deverted towards Maya created by the various Rajasik and Tamsik powers (shakties) of nature. The results that the students get by wearing this combination are simply amazing. There retentive power and intelligence level improves leading to better grades.