क्या पड़ोसी को जब उसकी और से पेड़ की जड़ें उसकी बागिचे की बारिकियों को तबाह कर देती हैं, तो क्या उसकी मरम्मत करने की जिम्मेदारी होती है?

Yes, according to Polish law, the neighbor is obligated to repair the fence that has been damaged by tree roots growing on his side. Even if the trees have been cut down, it is still the neighbor's responsibility to restore the fence to its previous state before the damage occurred. In this situation, where the wall has significantly tilted to the right, the neighbor should take corrective action as soon as possible to prevent further deterioration of the fence.