RVNL has slipped to its key ₹310-₹320 support, says analyst Sudhansu Panda, warning a break lower could mean a 30-45 point drop. Long-term investors may eye ₹270-₹280 for fresh entry, with dividend support adding appeal. Stock was down 24.1% YTD. RVNL recently won a ₹90.65 crore Southern Railway order to upgrade surveillance at over 480 stations.