Union Government — composition of gross tax revenue: Approximate share of <indirect taxes> in the Union's gross tax revenue. Choose the closest proportion.

Given data

• The question asks for the approximate proportion of indirect taxes in gross tax revenue (historical/typical exam framing).

Concept / Approach
In traditional exam contexts, India’s tax structure was described as being indirect-tax heavy, historically cited near ~70% in many standard sources for earlier periods.

Reasoning
Among the coarse options, about 70% corresponds to the commonly taught historical share for indirect taxes in gross tax revenue.

Note
Contemporary shares can differ by year and reforms; the question seeks a typical approximate figure used in exam literature.

Final Answer
About 70%.