RIL surged over 3 per cent last week. It tested the resistance at ₹861 and has come off from there, giving up some of the gains made during the week. Inability to bounce above ₹850 this week may keep it under pressure. Support is at ₹833, which is likely to be tested in the initial part of this week. A bounce from there can take RIL higher to ₹865 or ₹867 — a key trend resistance. If the stock man...