Matrimonial dispute, wife not ready to live with me what should I do?

my wife left me without such resoanable cause and filed divorce case but she has no ground and evidence. I'm not ready to give her divorce, 'coz nothing been happen between us it's happening due to someone who is playing a role to demage our relationship and want to break down our relationship. i love my wife too much..and don't want to lose her. i'm trying to avoid divorce. now. what sould i have to do..? if i contest with evidence then what time to be taken to solve the problem...? i'm also trying amicably solve the problem but my in-law , they are not ready to any kind of understanding and amicaby. We are hindu by religion.