Punjabi singer Jazzy B visits Singhu border to back protesting farmers; Delhi police shut Ghazipur, Chilla border; Dense fog to prevail in Punjab, Haryana & UP for next few days; no respite from cold wave in North India; COVID-19 vaccine will be equally effective against new virus strain, says CSIR; Sister Abhaya murder: After 28 years, Kerala's special CBI court convicts catholic priest & nun; and more