While the Odia Wikipedia has less then 1000 articles, it is growing them and it is growing its traffic. Given the activity for writing articles, localising messages there is a great opportunity to grow its traffic by at least half the numbers for a good number of months to come (it almost doubled traffic in March).
I have written about this on my blog and, I have written unasked advice about how I think a Wikipedia can be grown. This works not only for Odia but for any Wikipedia. I have heard Shiju Alex well when he says that quality is vitally important for Indic Wikipedias. They indeed do have to compete with English. There is however nothing stopping you from writing great articles. It does not make too much sense to want to concentrate on being complete in any range of topics. When you are as small as the Odia Wikipedia is, you want traffic and new editors. You want that desperately because when you have it, you do not have to let go.