A special one hour trading session from 8-9:00 am for discovering the share price of the demerged entity of Reliance Industries has began.The stock has touched a high of Rs 723, and a low of Rs 686 in the opening few trades.Presently the stock is trading at Rs 703, with a volume of around 13,000 shares.Yesterday on the last day of trading as a merged entity Reliance has soared to a liftime high of Rs 937.50, before settling at Rs 928.