Hey Sisira,

As of now the most advance and improving and developing technology is cloud computing. Because every software company is acquiring IoT based technology and hiring Cloud Networking Students and related field students also. So its a very good course to go for after compleation of BCA. Cloud Computing has become a necessary skill that you need to know about because of its wide range of services and applications. Some of the top companies providing and hiring cloud services are:

• Amazon Web Services Cloud Platform
• Microsoft Azure Cloud Platform
• Google Cloud Platform
• Adobe Cloud Platform
• VMWare Cloud Platform
• IBM Cloud Platform
• Rackspace Cloud Platform
• Red Hat Cloud Platform
• Salesforce Cloud Platform
• Oracle Cloud Platform  and many more.

Top colleges offering Cloud Computing courses are:

• Indian Institute of Technology (IIT), Mumbai
• Indian Institute of Technology (IIT), Delhi
• Indian Institute of Technology (IIT), Guwahati
• Indian Institute of Technology (IIT), Kanpur
• Indian Institute of Technology (IIT), Chennai
• Indian Institute of Technology (IIT), Roorkee
• Birla Institute of Technology & Science (BITS) Pilani
• Indian Institute of Science (IISc), Bangalore
• NRI Institute of Technology, Guntur
• Adarsh College of Engineering, Orissa
• Aravali Institute of Technical Studies, Rajasthan
• Babu Banarasidas National Institute of Technology and Management, Lucknow
• Bharath University, Tamil Nadu

Hope that helps

all the best