sarai nai dhukha lagdho kura ho,

hey its better to sale than to deal with this type of things, no matter how connectted you are , you may not win as you said he has bribed a lot  , its a network of goons and thugs.
i just read chori mayiya case , she got disappeared and there was a public support to find whereabouts of her
got any results, none,
even police is appearing to hide away from that case

so selling is the better option and bring money here in canada, u can get a decent life , u know how costly the real estate in nepal