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1. Bharat Biotech's Covaxin is overall 77.8 per cent effective against Covid, the vaccine maker says on Saturday in a statement, citing the data from the third phase of clinical trials. The data, however, is yet to be peer-reviewed. 2. Uttarakhand Chief Minister Tirath Singh Rawat hands in his resignation to the Governor on Friday, barely four months after he took charge and just ahead of polls next year in the state. 3. With the shortage of coronavirus vaccine and the dropping daily doses, the revises the vaccine estimates from 216 crore to 135 crore by December, but two doses for a 108 crore people by the year end means the government now needs to vaccinate 1 crore people a day. 4. India registers strong protest with Pakistan over security breach. 5. Mamata Banerjee's party on Friday urges Prime Minister Narendra Modi to remove Tushar Mehta as Solicitor General of India over his alleged meeting with Suvendu Adhikari, a leader of the ruling BJP being investigated by the CBI in corruption cases. Tushar Mehta, who represents the CBI in some of the cases, emphatically denied meeting with Mr Adhikari, saying he "dropped in unannounced" on Thursday.