Neighbours — forcing to cut down the trees

Iam a resident of dinesh nagar, bansdroni, kolkata-700070, west bengal
I have one complain about cutting down of old trees which are planted inside my plots. These trees are old, they are refreshing air and to much extent they are reducing the harmful effects
Of pollution created by vehicles.
Please help us to save them. As the neibour are forceing us to cut down those trees is illegally cutting trees. Now please do at your earliest.
Otherwise we will lost these precious natural resources.
I will be very thankful to you. If you prevent them from doing this cruel deed.