Just to add more to what MST Indianrailways has said.. If you want to really see some change in the services in your region kindly try the following
1: Try submit a memorandum to the station master at your local station, indicating support from the masses for the servies you want railways to provide you.
2: Similarly submit a memorandum to the divisional general manager of your railway division.
3:...
more...

submit a similar letter of support to the the railway headquarters. (not sure if you are under Central or South Central...
4. Submit letter of support to railway ministry
5. Approach your local MP's MLA's with your demands and ask them to pursue
6. See if you can gather support for your demands from adjoining districts.
7. Also write to other travel organizations of different cities for eg: hyb, pune, mumbai and see what people out there are wanting as far as connection with latur area goes and include those points in your letters. Once you do that they might also support your cause.
8:Form a travel organization for your city/ district and try to approach Railways as an organization rather than an indivisual.
9: please do not make any claims that the time WILL reduce or distance WILL reduce. WILL if replace dby COULD will make the case more effective as you would be expressing potential as against a claim.
10. Get publicity for this work trough local newspapers
11. Please do not hold dharnas in front of other trains and inconvinience other fellow indians just cause you are not getting the train services you desire.
There are more ways of getting the job done but atleast these 11 might help u in some wway and you can come up with more brilliant ideas
There was a guy who talked about doing some "Sangharsh" for better rail services for Latur / UMD. Instead of relentlessly blogging here may be he could think over these points and come up with a better way to achieve enhanced connectivity for the region.