The document discusses several challenges for India's upcoming 2017-18 budget. It notes that including railways estimates and abolishing the plan/non-plan distinction will impact the budget's complexion. It also cites declining manufacturing and commodity prices negatively impacting rail freight revenues. Other challenges include a deepening manufacturing crisis reducing tax revenues, rising public sector bank NPAs, and pending wage increases for public sector workers and the military. The large government debt and interest payments are also major constraints on public expenditure proposals for the new budget.