The bankruptcy filing by Reliance CommunicationsNSE -0.93 % (RCom) triggered a panic selling across various stocks of the ADAG group’s other companies on Friday including sale of pledged shares by some of the lenders. The data compiled by the ET Intelligence Group from Capitaline show that the trend of pledging promoter shares began way back in 2014 reflecting the gradual increase in the promoter group’s funding needs.