GKP-LJN-STP 15009/15010 express can easily be extended to Lakhimpur anyday.. Morning 55061 STP-LJN pass can also be originated from Lakhimpur, similarly 55066 can be extended to Lakhimpur..
The extn of above two trains will not require any additional rakes for now..
But eventually NER must procure sufficient DEMU/Conventional rakes to run on this route..