Which of the following is/are correct statements concerning the Industrial Disputes Act, 1947?

1. Industrial dispute means any dispute or difference between employers and employers, or between employers and workmen, or between workmen and workmen, which is connected with the employment or non-employment or the terms of employment or with the conditions of labor, of any person.
2. Unfair Labour Practices are defined under the Second Schedule.
3. It provides that an employer who intends to close down an industrial establishment shall obtain prior permission at least 60 days before the date on which he intends to close down the industrial establishment, giving the reason thereof.