The Henley Passport Index on April 17 released its list of the most powerful passports. Japan, Singapore and Germany, South Korea stand Top 3 respectively.
The index is published every year by the international journalism not-for profit body, "Reporters Without Borders (RSF)", to evaluate the press freedom situation in 180 countries and territories.
The Defence Research and Development Organisation (DRDO) has developed a unique system, called "SpO2 - Based Oxygen Saturation supplemental Oxygen Delivery System".
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