Developer Mode not available in Indian LG Content Store

SDK
1

I can’t find the Developer Mode app in Indian LG Content Store. Is there any way to access it?
Also, I can’t find the search option in store.

2

Please check your TV model name first. Some TVs do not support app testing feature. Thank you.

3

The model number is LG 43lh576t.

4

The LH57 model is based on NetCast, not webOS. And this model does not support app testing feature. (See Smart TV (LH57) vs. NetCast.) Thank you.