Which of the following statements is true regarding the 'Nabhmitra' device, recently in the news?
1
It is a satellite-based communication system developed by the DRDO for the safety of fishermen.
2
It is a satellite-based communication system developed by the ISRO for the safety of fishermen.
3
It is a satellite-based navigation system developed by the ISRO for the safety of fishermen
4
It is a satellite-based navigation system developed by the DRDO for the safety of fishermen.