After working for small-niche consulting firms in India,I realized that one needs to work with established names(i.e.the big-4) or with firms doing specialist work in the public sector-since they contribute to a high share of the revenues.
Key Issues to answer here are:
1)Which industry interests you?
2)Which sub-industry/sector interests you?
3)Is the sector/sub-sector futuristic i.e.contineuity in external help(consultants) to run the business?!
4)What is the average number of people who apply in this industry i.e. competition that you will have to bear.
5)How high-profiled are the projects undertaken by the firms of your interest been involved with in the past 2 years?
Hope this helps.