Polylang ignore my permalinks structur

I am sorry but I don’t understand.
What is sub1?
What is your permalink setting?
What are your Polylang settings?

I still don’t understand what is sub1. We can publish posts in categories but not in a submenu. In any case, the url should not depend on the position of the link in the menu..

I dont’ believe that this sub1 is added by Polylang. Could you try to make tests with a default theme such as twenty twelve and no other plugins activated?

There are some inconsistent things. If the structure is /%postname%/ you can’t get domain.com/postname.html but only domain.com/postname/.

Moreover, if you come from WPML and want to keep the same permalinks, I believe that you need to check the Polylang options:
* The language code, for example /en/, is added to all urls when using pretty permalinks.
* Hide URL language information for default language

Also a link would help to better understand your problem.

Menus structure and permalinks structure are two different and independant things. That’s why I misunderstand why you referring to your menu structure when your problem seems to be in permalinks.

I am totally lost now. You wrote above that your permalinks structure is /%postname%/ and now you are writing that you use a plugin to create a custom permalink structure to obtain something else.

I will explain how Polylang works:
* If the language is set from content, it does not modify the posts, pages, categories and post tags urls and does add the language code to all archives.
* If the language code is added to all urls, then Polylang does only this (this is the “WPML like” option).

Now a conflict is always possible if another plugin also modifies the url in a non expected way.

I guess such a plugin is not useful. To obtain the
domain.com/german-post.html
domain.com/en/english-post.html

Your permalink structure:
/%postname%.html

Your Polylang settings:
* The language code, for example /en/, is added to all urls when using pretty permalinks.
* Hide URL language information for default language

Please do the tests without any other plugin activated and with a default theme to see if you obtain waht you expect

As suggested above, did you check the option:
“The language code, for example /en/, is added to all urls when using pretty permalinks”
in Polylang settings?

Polylang does not seem to be active on the links you gave above.

However the link http://www.varkala-holiday.com/en/india-asia.html does work which make me think that either you have a directory or a page called ‘en’. This will conflict with Polylang.

Finally, the settings you posted above are not correct if you want the “WPML like” url. You must check:
“Der Sprachenkode. z. B. /de/, wird alles URLs beigefügt falls schöne Permalinks benutzt werden”