No booking allowed for Intermediate to intermediate stations but intermediate to terminating station (exception may exist in other leg)..
Cant be sure, if only UTS could suffice (mayb for SL), but in AC, u may need First Class Unreserved Ticket (without it, may termed ticketless & fined accordingly)..
Further, TTE will make ticket till ERS or minimal chargeable distance (High chance till ERS)...