Gross GST collections rose by 9.1 per cent to about Rs 1.84 lakh crore in February, boosted by domestic consumption and indicating potential economic revival.As per the official data released on Saturday, on a gross basis, mop up from Central GST stood at Rs 35,204 crore, State GST at Rs 43,704 crore, Integrated GST at Rs 90,870 crore and compensation cess of Rs 13,868 crore.