Naidu was addressing an event on the 51st International Literacy Day.
"It is indeed heartening to note that every year more than one crore adult learners appear in the bi-annual learners assessment tests held across the country and that around 6.66 crore learners have successfully passed the test conducted by National Institute of Open Schooling (NIOS) up to March 2017, of which about 70 per cent are women.
Asserting that literacy provides the first essential step towards building a participative, vibrant and a more inclusive democracy, Naidu suggested ways to achieve universal literacy including improving the quality of pre-primary and school education and providing opportunities for learning to those who have never been to school or have dropped out of school.
"If we have to move at a faster pace and achieve a literate world by 2030 and India has to ensure that all youth and a substantial proportion of adults acquire these skills, we may have to review our past strategies and after an assessment of what has worked and what has not, learn from successful examples from within our country and outside.
The event was also attended by Union HRD Minister Prakash Javadekar and Ministers of State for HRD Upendra Singh Kushwaha and Satyapal Singh.