Over 300 companies will declare their quarterly results on Friday. Among these are Ador Welding, Amtek Auto, Balkrishna Ind, BF Utilities, Cera Sanitaryware, CG Power, Future Enterprises, Glenmark, Jain Irrigation, Lakshmi Vilas Bank, MMTC, MTNL, ONGC, Opto Circuits, OMDC, Parsvnath, Pfizer, Panacea Biotec, RCom, Reliance Capital, Reliance HF, Reliance Infrastructure, Reliance Power, Ruchi Soya, SAIL, SpiceJet, Sun TV, Tide Water Oil, Warren Tea and Zuari Global.