RVNL: Rail Vikas Nigam Ltd. Off the Rails and Over the Bridge!Rail Vikas Nigam Ltd.NSE:RVNLBallaJi🚂🚂🚂 The Parabolic Peak: RVNL has become the poster child for "PSU Mania." The chart shows a classic "Blow-off Top" with vertical price action on massive retail volume. The Derailment Drivers: Profit Booking Gravity: The stock is prone to "News-Driven Exhaustion." Every major order announcement is now met with a "Sell the News" reaction. Margin Pressure: While the order book is huge, these are low-margin infrastructure projects. If commodity prices (Steel/Cement) stay high due to Middle East tensions, these fixed-price contracts will see significant margin erosion. The Gap-Down Risk: There are multiple "unfilled gaps" lower on the chart.