Dear Sona,
It is execellent loyalty that any organization can have from employee. Thumbs Up!!
As you have informed everyone , not once but twice. So now , only work as you were doing infact more than that , no problem communication level is low , but your output , must not be low.
(it is very difficult to do than easy to said , but nothing is impossible)
As all said , keep yourself on the cool n calm position , politicking , back bitings , kick off strategies , etc are the common tool in any organization in the world.
Only , one thing can make you happy is your work and reporting of that work to top management.
While that , keep on searching another good position in the market might available for U!
till than you will not get the chance , do not take decesion of leaving the organization , because, i think so , that what they want from you.
so Be Firm!
Be Energetic
Be Politicking
Get involve yourself with them , like "Cook the Conflict Concept" , Cook the Conflict and get your objectives out of it, but they must get you like " you are changed and alligning with their roles " etc... Try to have some parties with them , lunch , dinners High tea , etc. Out of Box Parties ,, Just Act! and get your objectives ...
It's Politicking ! But It requires always !!!
By that you will be able to get this resolved i hope so.
DO not Leave the company !!! This is something Normal happenings......