Yes thats exactly my point HWH-BPL cannot be extended. Kyoki first RSA k kaaran Day of Run change nhi ho skta or present TT pe INDB extension ka koi faayda nhi, INDB se Shipra or HWH-BPL dono same day ho jaaengi back to back chlana pdega to daily connection nhi mil paaega.
Sbse better solution ye h ki Shipra ko 2 days via Nagpur, Tata chlaya jaye or 2 din via Singrauli. To Howrah k saath Indore ko 2 din Raipur or 2 din Singrauli ki connectivity mil jaaegi.