ACT Fibernet — junction box in my apartment

Address:

Chennai, Tamil Nadu, 600061

Hi,

A junction box has been installed in my apartment for quite some time by one of the tenants. I am one of the owner's of the apartment and there is no proper consent taken for installing the junction box. And this tenant is no more living the apartment.
The main troubling issue is that, recently a bunch of wires are taken out of the box, across ground floor ceiling and are distributed to different buildings.

We donot want our apartment to be a common point of access for several reasons especially without proper consent. Please help in removing it asap.