Tenent refuse to evict the house with in 3month of time (no agreement made yet)

Dear Respected sir/made I am from chennai. We where allowed a couples for a rent in our newly constructed house From March. But now ( july) we gave a rental agreement to them in that it mentioned that the tenent supposed to paint the house when they evict but they refuse this and had an agreement with us. So we told them to evict the house also we said take 3month to find new house but now they are telling that if 3months fails we need extra time and also says landlord can't be demand us with in these many days as we are only being here for 3months. Here my questions are •landlord doesn't have any rights to evict the tenent in oral date ? •can we make them to evicte anytime as there is no agreement among us ? • is there any possibility for there favour about against us ? The reason for us to ask then to evict is • they won't atten any phone call from us •they are not available whenever we go •they tent telling us not to visit them and we should not disturb them (we doesn't have any mode to contact them except phone call and face to face) •his wife was been so talkive as she is the house owner Kindly tell me the further steps from us I am confused and tense due to this