"There was unanimity among all the participants that USD 1-trillion digital economy is an understatement. India has the immense potential to go even higher," Law and IT Minister Ravi Shankar Prasad said. Indian digital economy is USD 450 billion at present (2017)
Electronics $ 100 billion
IT sector $ 150 billion
Telecom $ 150 billion
E-commerce $ 30-40 billion
Shared economy like taxi hailing services, start-ups - rest

Potential for:
Electronics market $ 300 billion by 2025
IT & ITeS sector $ 350 billion by 2025
Telecom $ 150 billion
E-commerce $ 150 billion
Shared economy $ 30 billion
Digital skilling $ 30 billion
Digital payments $ 50 billion
Cybersecurity $ 35 billion
Internet of Things $ 20 billion

The ministry estimated 30 million jobs would be created by 2024-25. It has identified Make In India, Start-Up India, Skill India among the other key drivers of the digital economy, i.e. apart from digital payments.
Digital economy can reach $4 trillion in 4 years: Tech sector to government