this is 7th CPC new rule regardin annual increment.
here u can see if any one joins before 1st july he'll get increment on 1st Jan 2019, and if u join after 1st july ur annual incremet will happen on 1st july 2019.
Just now I talked with Scientist-E in NIC office. He told me that no one can interfere recruitment process. The process has its own way. He also told me that internal promotion has nothing to do with results.