Chief Economic Adviser: Increase in Indirect Tax Revenue Collections during July 2015 and first four Months (April-July 2015) of Current Financial Year 2015-16 Indicate that the Underlying Momentum in the Economy Continues to improve across all Sectors; Growth of 14.6 Per Cent (Excluding The Additional Revenue Measures) in Collections in first four Months Suggests a Healthy Increase in Nominal GDP Growth which constitutes the Tax Base for Indirect Tax Collections