BENGALURU, Sept 30 (Reuters) - Reliance Industries Ltd said on Wednesday General Atlantic plans to invest 36.75 billion rupees ($498.31 million) for a 0.84% stake in its retail arm, making it the latest in a series of investments at the Indian oil-to-telecoms conglomerate. The investment gives Reliance Retail a pre money valuation of 4.29 trillion rupees ($58.17 billion). ($1 = 73.7500 Indian rupees) (Reporting by Philip George in Bengaluru; Editing by Shounak Dasgupta)