Government should try to make business transactions electronic. There are so many people who get away with VAT. Playing around with Income tax slabs will not help the country much.
In the developed economies, the economy does well and the population is in control as expenses are higher and whatever you spend is accountable.
Fines should be higher on violators. Salaries are going up, taxes collected is also going up, spending is also going up but the infrastructure and the quality of life is still deteriorating.