Analyst Krishna Pathak said Chambal Fertilisers is forming a round bottom reversal pattern with strong support at ₹430. The stock is consolidating above ₹550, a key resistance, with breakout targets at ₹634, ₹691, and ₹755. Pathak sees 30%+ upside if momentum sustains. A dip to ₹480–510 is seen as a buy zone.