The correct answer is option 2: 2 only.
Smart India Hackathon 2017 was a government initiative aimed at identifying new digital technology innovations for solving various problems faced by our country. The event was organized by the Ministry of Human Resource Development, All India Council for Technical Education (AICTE), and a few other organizations.
Option 1 is incorrect because Smart India Hackathon 2017 was not a centrally sponsored scheme for developing every city of our country into Smart Cities in a decade. The Smart Cities Mission was a separate scheme launched by the Government of India in 2015 with the objective of developing 100 cities as Smart Cities over a five-year period.
Option 3 is also incorrect because Smart India Hackathon 2017 was not a program aimed at making all financial transactions in our country completely digital in a decade. However, the government has launched various other initiatives such as Digital India and BHIM (Bharat Interface for Money) app to promote digital transactions in the country.
Smart India Hackathon 2017 was the world`s largest hackathon, with more than 10,000 participants from various engineering colleges across India. The event was aimed at finding innovative digital solutions to address various challenges faced by our country such as healthcare, sanitation, education, agriculture, and transportation. The hackathon also provided a platform for students to showcase their technical skills and work on real-world problems faced by the government and the industry.
In conclusion, Smart India Hackathon 2017 was an initiative to identify new digital technology innovations for solving the many problems faced by our country, and options 1 and 3 are incorrect. Option 2 is the correct answer.