It is good that you have ambitions of becoming an entrepreneur in the field of nanotechnology in textiles.
Nanotechnology is an emerging area which is being used or being incorporated in various fields like medical, chemical, engineering, scientific projects, space, hazardous environment etc. The basic concept behind nanotechnology lies in the fact hat the material in very small size (nano size) exhibit special properties and this can be exploited for designing of material to differing specifications. Altering the material at nano levels will completely change its characteristics.
Nano technology is being tried in textile industry to produce softer and stronger cloths. There are new areas emerging by the use of nano techniques in textile as the whole manufacturing process and the finished products are being shaped in different presentations and there is a huge requirement in the fashion and upmarket places. There is no doubt that it may open up a new business opportunity in textile sector.
These things are still in research and trial platforms but the early birds will have the advantage of reaping the benefits of commercialisation in this area.
I am not aware of any specific institute in India which is conducting a program in nanotechnology in textiles but there are many who are conducting in general nanotechnology subject. IITs, IISc and many other colleges conduct these courses and you can check that in details if that meets your objective.
As you have indicated your inclination to do it from abroad, I can suggest some good ones as follows -
1. North Carolina State University, USA.
2. RWTH Aachen University, Germany.
3. University of Boras, Sweden.
4. Technical University of Liberec (TUL), Czech Republic.
5. University of Nebraska-Lincoln, USA.
6. Saxion University of Applied Sciences, Netherlands.
7. The University of Bolton, UK.
8. University of Manchester, UK.
9. University of Leeds, UK.
10. Dresden University of Technology, Germany.
11. De Montfort University, UK.
The above are some of the leading ones in the area of textiles. Some of them are dealing in nanotechnologies also. You will have to find out the details by visiting their sites. Anyway, I have also found out that the one at Sl. No. 4 is having a good course in nanotechnology in textiles. You can check their website.
Knowledge is power.