A memory chip which was recovered from a damaged mobile phone by forensic experts in Gujarat is among the key evidence gathered by the Karnataka Police in a case of the sexual assault of a minor registered against senior BJP leader and former chief minister B S Yediyurappa. According to sources, the phone was assumed to be destroyed but its memory chip containing “the full original video” was recovered during the probe by experts. The phone was used by the mother of the victim to record a video of her…