Record 6,977 new COVID-19 cases in 24 hours, biggest spike for fourth straight day; Countrywide cases cross 1.38 lakh, India at 10th spot globally; SC to Air India: No middle-seat bookings in international flights after 10 days; No mask, no social distancing: Delhi BJP chief flouts lockdown norms; Maharashtra: 51 more cops test COVID-19 positive, total infected at 1,809; and more