India’s digital economy is expected to grow from the current $270 billion to around $1 trillion in the next 5-7 years, aided by the exponential growth witnessed in e-commerce, electronic manufacturing, IT services, financial technologies (FinTech), and telecom among others, minister for electronics and IT (MeitY) Ravi Shankar Prasad said on Tuesday.He said the government has roped in management consulting firm McKinsey to prepare a Digital India Index, which will evaluate the Centre and state on various key indices such as eHealth, eEducation, eGovernance and digital infrastructure.