With reference to Pradhan Mantri Jan Dhan Yojana (PMJDY), consider the following statements:
1. It envisages universal access to banking facilities with at least one basic banking account for every household.
2. Accounts opened under PMJDY can be opened with zero balance.
3. All Indian Nationals aged between 18 and 59 years are eligible applicants under PMJDY.
How many of the above statements are correct?