"(4) Save as otherwise provided in this Act, the provisions of this Act shall apply to-
(a) institutions;
(b) students and teachers of the institutions;
(c) schools imparting pre-primary, primary, upper primary, secondary or senior secondary education and colleges providing senior secondary or intermediate education irrespective of the fact, by whatever names they may be called;and
(cl) teachers for schools and colleges referred to in clause (c ). ".
4. In section 2 of the principalAct,-
(i) after clause (e), the following clause shall be inserted, namely:- '(ea) "local authority" means a Municipal Corporation, Municipal Committee, Municipal Council, Zila Parishad, District Board or Nagar Panchayat or Panchayat, or other authority (by whatever name called), legally entitled to, or entrusted by the Government with the control or management of a municipal or local fund;';
(ii) after clause (k), the following clause shall be inserted, namely:- '(ka) "school" means any recognised school imparting pre-primary, primary, upper primary, secondary or senior secondary education, or a college imparting senior secondary education, and includes-
(i) a school established, owned and controlled by the Central Government, or the State Government or a local authority;
(ii) a school receiving aid or grants to meet whole or part of its expenses from the Central Government, the State Government or a local authority;
(iii) a school not receiving any aid or grants to meet whole or part of its expenses from the Central Government, the State Government or a local authority;'.
5. In section 12 of the principal Act, in clause (d), the words "in schools or" shall be omitted.