I think most of the special train start by SER from RNC and TATA will run empty because choosen of wrong routes i.e RNC-IPR , RNC-BGP, TATA-PNBE, TATA-BSB etc ..
There are no sense to start spl. trains on these small routes.. Better SER would start long distance spl trains. RNC doesn't have direct connectivity with LKO.. so on experimental basis RNC-LKO might be start in place of RNC-IPR..
Same from TATA, train for BSB and PNBE not require on the same route via gmo-gaya.. Better TATA -PNBE would run...
more... via DHN - JSME and upto BXR .. TATA - BSB should run upto GKP or LKO..
Where most of zones started long distance trains upto Mumbai Delhi Bangalore, Chennai etc . SER still using short distance route map..