Nationwide COVID19 Vaccination drive to cover senior citizens, those above 45 yrs with co-morbidities begins tomorrow            PM asks people not to lower guard against Corona            PM emphasizes need to take science forward with mantra of 'Lab to Land'            ISRO successfully launches Brazil's Amazonia 1 satellite, along with 18 other passenger satellites            Hockey: Indian beats Germany 6-1 in first match of European tour