If you only hold and Indian passport, then unfortunately you will have difficulty getting visa entry into most African countries for longer than a couple weeks (a month is the longest I have heard of). And if you are low hours you will need to be in the country for significantly longer than one month to be able to get a job.
This is NOT a result of the individual African governments, but the Indian governments decisions about how it treats Africans.
Your best option, actually, is Indian companies.