While it's no short-term solution, you could consider talking with the dean of your college (or another local science/engineering institution) about establishing a shared instrumentation facility or network. These organizations help produce higher quality research by enabling more scientists to use hard-to-find or expensive instruments which might already exist in your region. Such a program might host a group of instruments clustered in one place, or it could be a distributed network of instruments in different labs or at different institutions with some sort of centralized scheduling system. As Artur suggests, your neighbors might have the capabilities you need, and developing a collaborative instrument network could help you access them.

A few examples of shared facilities and networks in the U.S. are linked below. The first is a list of materials characterization labs at Purdue University; I believe most of the instruments are owned by PIs and kept in their labs, but they are available to outside users. The second is the NUANCE cluster at Northwestern University, which owns and houses several electron microscopes, surface characterization tools, and other equipment, which is available to users at Northwestern as well as outside users. The third is the Research Triangle Nanotechnology Network, which was recently established to link several user facilities available at institutions in North Carolina.

It may be a stretch for you to use these particular facilities, but perhaps they will provide some inspiration for establishing a network that will help you and other scientists get access to the tools they need.

Good luck!

https://engineering.purdue.edu/MSE/research/facilities

http://www.nuance.northwestern.edu/index.html

https://www.rtnn.ncsu.edu/

In IIT chennai please contact chemistry department head. Chemistry department had there own XRD lab. There you can get results in short time.

It may be a stretch for you to use these particular facilities, but perhaps they will provide some inspiration for establishing a network that will help you and other scientists get access to the tools they need.