Wife is threatening for suicide

Neglect her , don't see the chat ,act that you knows nothing about her threats ,pretend as u know nothing ,keep evidences , let her do whatever she like .

Yeah that's what I have been doing but is my base strong enough to get divorce

The crime here is Criminal Intimidation and is mentioned under Section 503 of the IPC. Whoever threatens another with any injury to his person, reputation or property, or to the person or reputation of anyone in whom that person is interested, with intent to cause alarm to that person, or to cause that person to do any act which he is not legally bound to do, or to omit to do any act which that person is legally entitled to do, as the means of avoiding the execution of such threat, commits criminal intimidation.

The punishment for the same is mentioned in Section 106 of the IPC. Whoever commits the offense of criminal intimidation shall be punished with imprisonment of either descripttion for a term which may extend to two years, or with fine, or with both. 

If the threat is to cause death or grievous hurt, etc. and if the threat is to cause death or grievous hurt, or to cause the destruction of any property by fire, or to cause an offense punishable with death or [imprisonment for life], or with imprisonment for a term which may extend to seven years, or to impute unchastity to a woman, shall be punished with imprisonment of either descripttion for a term which may extend to seven years, or with fine, or with both.

Thus, criminal intimidation is a pretty strong ground to file a divorce case against your wife.

Regards,

Anaita Vas