Area of interest identify e.g.microbiology fishries.
?General topic became base of topic selection.They have following criteria for topic selection.
1 Personal Interest.
Work according to own interest and own topic for research and you want more work on it near future.
You select if topic than you know what importance it have and how benefit take other peoples and choose those topic those benefit for our and complete at the time take no more time.
Already work have gaps exist and conclusion that work more find new things.
Short time so select those work that have finish 6 to 8 months duration like m.phil research.
Select those you have facility to achieve topic equipments are present approachable and minimum input to give good out put.
How to invest money in your research.
If you work on any animals than you must keep in mind rights of participants give protection to animals.