A step closer to Samudrayaan – How two Indians reached 5,000m deep in Atlantic

​A deep-sea expedition was completed recently by marine scientist Raju Ramesh and former Navy officer Jatinder Pal Singh in a French submersible, ahead of India’s Samudrayaan mission, which aims to send three aquanauts to a depth of 6,000 metres by 2027 in an indigenous underwater vehicle​