ONGC has given a strong breakout above the long-term horizontal resistance near ₹258–260, which earlier acted as a supply zone, and the price is now sustaining above this level around ₹278, indicating a clear shift in trend. The sharp bullish candles after the breakout reflect strong buying interest and confirmation of demand, while any pullback towards ₹260–265 can act as a retest and buying opportunity. As long as the stock holds above the breakout zone, the trend remains bullish with upside potential towards ₹285–295, whereas a close back below ₹258 would weaken the breakout structure.