Indian Navy Commissioned INS Sandhayak Hydrographic Survey Vessel in Visakhapatnam

Indian Navy today commissioned INS Sandhayak (J-18) Hydrography Survey Ship in presence of Defense Minister Raj Nath Singh at Vizag Port. Its 1st of 4 being built by GRSE, Kolkata 🇮🇳
Many not realise but this is very imprt for us to scan Navigation channels & Sea bed which further used by Navy Submarines in moving safely under Sea.
Chinese Navy mostly in past 2-3 yrs sending these types of vessels near India EEZ to Scan sea bed for their Nuclear Submarine movement in IOR