Migrating Access back end to the cloud

Do you want to run this relational database application as a web - browser based application, or as a desktop application?

I don't know which "guys in India" you mean, or what they recommend, but you really don't need a lot of other software packages if you are going to continue to use this as a desktop application. However, if you want to replace the Access interface with one that will operate in a web browser, you WILL have to invest in and learn to use the appropriate tools for that.

So, start by explaining who will actually use it, where they are physically located (in a single facility or dispersed among several) and how you anticipate using this relational database application. From there, we can examine some options.