The Constitution (103rd Amendment) Act introduces reservations for economically weaker sections (EWS). This amendment provides reservations in central government and private educational institutions (except minority educational institutions) for admission and recruitment in central government jobs. 

Constitution (103rd Amendment) Act, 2019

   The 103rd amendment was enacted to promote the welfare of the poor who are not covered under the 50% reservation policy for SCs, STs and the OBCs. The act enables the Centre and the state governments to provide reservations for the EWS. Since this is a law on subjects in the Concurrent list, the individual state governments need to ratify it before adopting it.
103rd amendment of Indian Constitution