There is no point in building multiple lines where population is very less and with no economic activity and have to depend on flow of traffic.
1. Bidar Nanded both of them are in different states , no any cultural exchange or they dependent for business, transportation of goods
2. Udgir Nanded both places are in one state the line is extention of the already line from Kurudwadi to Udgir which connects Pune and Mumbai alternate line so this can be taken up as they will be flow in traffic and further...
more... they can connect Nanded to Wadi which is proposed and will be alternate line.
3. Bodhan Parli though Parli has thermal power point the main lines are being doubled so building a new line is not worth as the capacity is not being increased.