Congress, 17 opposition parties to boycott President's Parliament address on Jan 29; West Bengal becomes sixth state to pass resolution against farm laws; SC seeks Centre's reply on Congress MP's plea challenging constitutional validity of farm laws; Agitating farmers take out tricolor march on Delhi border, villagers stage protest asking farmers to vacate; Heavy stock market crash: Sensex closes below 47,000 for first time this year, slumps nearly 3,000 points in 5 days; and more