Collabera is a company which seems good for those who feel are not much bothered about salary. They have few very good projects. Mobility wing and IM and Big Data wing is excellent.
Recently they got a project from Lucasfilms which is good. The biggest con that I found in the company is lack of growth and low pay scale when compared to others in the market.
Apart from that the service provided by the IT-Operational team is pathetic. For a single software installation they might take months all together