Answer : 2. "Visakhapatnam"
Explanation :

The Maritime Technology Exhibition MTEX-24 is a major feature of MILAN 2024 in Visakhapatnam, showcasing India's advancements in naval technology. Recently inaugurated by Defense Minister Rajnath Singh, MTEX-24 runs for three days and emphasizes on self-reliance in defence. It highlights advances in shipbuilding, communications, cyber security and sustainable energy solutions. Key participants include key players, defense start-ups, PSUs and naval organisations, promoting collaboration and exchange of knowledge. MTEX-24 aims to lead India's maritime industry towards a safe and prosperous future.