Although there was news that 2G is being shut down completely, some companies are going to carry it for some time. In India its going to be there for a long time still.
Telit is quite expensive and no sales support except one or two distributors in India.
Quectel has comparable prices. You can try. Telit designs are very complex, they need lot of extra circuit to operate. Their modules dont even have a Power Key pin to turn ON OFF, like the GL865 or GE866.
Contact Rabytes India or WE components for Telit modules. For Quectel Evelta electronics is the site.
Yes you need to know APN before hand. Its one time setup. Normally it is done using SMS in some modules. SIM800C has bluetooth so i make use of it to set APN values using an Android App.