Anyone please guide me how I perform load testing on Android Applications. Please suggest any tool with guidelines.
If you need to test Android application performance itself, i.e. find the slowest functions, measure activities switching/rendering/calculation speed, CPU, RAM, Battery usage and so on - the best (if not only) way is using a profiler tool:
If your goal is to simulate hundreds/thousands of users concurrently using multiple instances of the mobile application which communicates with the backend or database, to wit you need to conduct performance testing of the backend - it's also possible with a special load testing tool.
The choice of the tool depends on several factors, the main of them are:
See Open Source Load Testing Tools: Which One Should You Use? for example tools comparison