Sub DB for new air conditioner project

The Plan.
A new 1hp air-conditioner for living room 2.
Currently main DB is already full.
To install new sub-DB.

8.5 way DB box

40a ELCB and several MCB (20a, 16a, 10a and 6a) 

Waiting for 2.5mm2 wires bundles and 2m short 4.0mm2.

Fixing the new DB to the wall and connect all the cables to main DB.

Once the sub DB connected to main DB, next step is to prepare wiring to new ac location.

Air Conditioning switch installed with the routing to Sub DB.

Hacked a hole for wiring from new sub DB

Next step to make access at the plasterboard ceiling

Starting with the connection from sub DB (10a MCB)

Pulling approximately 5 meters of RBG 2.5mm2 cables

Another set of wiring from AC Switch to AC location. Approximately 3 meters

Next is to install the AC..
-Post Status

The hole on wall patched up with cellulose filler

Touched up ceiling access panel with aluminum strips

 Wiring extended to a/c location with termination box