Reliance Industries Ltd. has fallen over 23% from its highest point in July this year.Tata Consultancy Ltd. and HDFC Bank Ltd. are quickly catching up to dethrone Reliance Industries as India's largest listed company.HDFC Bank is set to deliver its 11th consecutive year of gains, while TCS is the closest to dethroning Reliance Industries from its top spot.Reliance Industries has seen consensus estimates fall for its earnings, with a 16% drop in earnings per share estimates for next year.