*Markets Likely to Open Flat Amid Israel-Iran Tensions; Key Nifty & Sensex Levels to Watch on June 17* * * Sensex and Nifty likely to open flat on June 17, as lingering Iran-Israel tensions weigh on investor sentiment. * Markets closed strong on June 16, despite escalating geopolitical concerns in West Asia. * India VIX dropped by 1.61%, settling at 14.83. A decline below 13.5 could signal improved market stability and a bullish outlook. * At 7:30 am, GIFT Nifty was trading near 25,000, showing a marginal rise of 0.02%. * Geopolitical tensions escalate as former US President Donald Trump urges Americans to leave Tehran after Israel warns of potential fresh strikes. * Iran signals willingness to de-escalate, according to reports from Middle Eastern and European officials via The Wall Street Journal. * Tehran may consider negotiations, provided the US stays out of any military action. * Iran seeks mediation from Qatar, Saudi Arabia, and Oman, asking them to persuade Trump to press Israel for an immediate ceasefire * On June 16, markets gained nearly 1% with strong buying in large-cap and blue-chip stocks, reflecting a flight to safety among investors.