Indian equity benchmark indices opened largely flat on Monday as investors remained cautious amid developments surrounding US-Iran negotiations and mixed global market signals. The subdued opening reflected uncertainty over geopolitical developments and their potential impact on crude oil prices and global risk sentiment.

The Sensex and Nifty started the session with limited movement as market participants assessed overseas cues and awaited further clarity on the US-Iran situation. GIFT Nifty had indicated a steady-to-positive opening for Indian markets earlier in the morning.

Geopolitical developments remain an important factor for Indian equities. Any progress in negotiations between the United States and Iran could influence investor sentiment, particularly through movements in crude oil prices. India, being a major importer of crude oil, remains sensitive to sharp changes in international energy prices.

Investors are also monitoring global equity markets, foreign institutional investor activity, the rupee against the US dollar and upcoming corporate developments. Defensive sectors and heavyweight stocks could influence the direction of the benchmark indices during the trading session.

Market participants are expected to remain cautious until there is greater clarity on the US-Iran negotiations. A positive breakthrough could support global risk appetite, while renewed tensions could increase volatility across equities and commodities.

With the opening remaining largely flat, traders will closely watch key support and resistance levels in the Nifty 50 and Sensex for further direction during the day.