- How far has the MOM (Mars Orbiter Mission) travelled, and
- Where is it now?
It is scheduled to reach Mars orbit on September 1 this year.
This answer is only to provide some supplemental information on the discussion in the comments section of the original question.
There was a reference to an animation of the MOM and MAVEN orbits at http://sankara.net/mom.html . Since I am the developer of the animation, I would like to clarify a few things:
Download Eyes on the Solar System. Mars Orbiter Mission is one of the spacecraft tracked therein. It looks to be a little behind MAVEN, also tracked. The measuring tools can tell you how far away it is from anything else that's tracked, like the Sun, Earth, Mars, and MAVEN.
Clicking on additional information button in its toolbar, it displays an external link to ISRO's Mars Orbiter Mission page, with regular mission updates. Currently latest is from ten days ago as of writing this answer (12-06-2014):
At present, the radio distance between the Spacecraft and the Earth is 102 million km. A radio signal from the Earth to the Spacecraft now takes about 340 seconds. The spacecraft so far has traveled a distance of 466 million km as part of its total Journey of 680 million km.
For current distance to Earth, you can also use DSN Now online tool and click on the DSN (Deep Space Network) station that tracks MOM at that time. When available, the range is displayed in the right column.