You should engage a local lawyer and contest the case on merits 

file detailed reply denying allegations made in n divorce petition 

It may not be a divorce case instead it should be a petition seeking annulment of marriage for non consummation of marriage.

You may go through the contents because she cannot file a divorce case within one year from the date of marriage.

In any case you may give vakaltnama to your advocate and also give power of attorney deed to someone close to you to represent you during your absence , before the court. 

You cannot file the case in your home town if your marriage was not solemnised in that place and also you may not be able to succeed even if you file a transfer petition to get this case transferred to Siliguri from Kolkata.

You can discuss with your advocate and take a proper decision patiently instead of hurrying the issues 

1. Once you give vakalatnama to your advocate, he can represent you in court .

2. In civil suit like the one you are fighting physical presence is not mandatory.

Dear client,

In India, the location of the marriage or the last residence of both parties determines the jurisdiction in divorce cases. Your marriage and your departure for Colombia happened in Kolkata, so it might not be proper to file in Dhanbad. To ascertain the appropriate jurisdiction, take into account variables such as the location of marriage, your present residence, or the residence of your spouse, and speak with a lawyer. Regarding her assertions, it is important to provide evidence to support claims under Indian divorce law, which is based on the Hindu Marriage Act and permits divorce on a number of grounds. While cruelty is one of the grounds for divorce listed in Section 13(1), Section 13B permits divorce by mutual consent. The amount of permanent alimony is decided by considering various aspects such as income, standard of living, and length of marriage.

Hope this helps you.

Yea, leave a Vakalatnama and additionally a power of attorney in favour of your father, authorising him to do the needful on your behalf in this case. This should suffice for now 

- As per Supreme Court judgment, wife is expected to move in with the relatives of their husbands, follow the rules and customs of their home, and ideally, blend in seamlessly as a new daughter. 

- Further, the court granted divorce to a man on the grounds of “cruelty” after his wife refused to share a home with her in-laws.

- Further, If wife is not supporting her husband for the enjoyment of life and denying relation, then the husband can get divorce after filing a divorce petition before the court on this ground.

Further, As per Delhi High Court, physical intimacy is an essential aspect of marriage and a wife's continuous refusal to have such relationship with her husband can be a ground for divorce,

- Further, under section 12(1)(a) of Hindu Marriage Act, non consummation of marriage is a ground of divorce and annulment of marriage . 

- Since, she has filed the divorce petition , then you should contest the case either physically or through a lawyer on your behalf. 

- Further, if she is a working lady and earning sufficient amount for her maintenance , then she is not entitled to get maintenance and heavy alimony from you. 

- Further, if you are interested to live with her , then you can file a petition before the family court in your state for the restitution of conjugal rights 

- Further, if you will not appear before the court after getting the summon in her case, then she may get ex-parte divorce decree . 

You need to file the case where the marriage has been solemnised or where you have resided after marriage 

1. You should issue Vakalatnama in favour of your Advocate and start cobntesting the case fittingly.

2, You can also file a transfer petition before the Supreme Court but it s unlikely that you shall get favourable order.

3. Since you have married just 5 months ago and it has not yet been consumated, you have a fair chabnce to contest it strongly.