Making a train daily
(1) lead to convenience to people as they can straight forward plan their journey with out bothering about availability of train on a particular day,
(2) leads to better/ rake utilisation
(3) better utilisation of time slot
(4)...
more... convenience to railway officials
(5) but give minimum political mileage.
On the other hand announcing a new weekly train gives more political weightage, In spite of above we find more and more new weekly/ biweekly trains announced than regularisation of existing trains.
For stoppage there is a policy.
(1) First make a grand announcement of a new superfast train with minimal stops and timing and derive political mileage.
(2) Then announce stops one after the other and get further political mileage.
(3) On some instances, same train is inaugurated again and again some times as special train and then regularisation.
This way people realise that it is their representative who is facilitating them with new trains and not the market demand for such train. This is IR!!