In most of the IT companies, it's possible that husband and wife can work in the same office and there's no corporate policy against this. I have seen many of them.
However, when it comes to employment opportunity for family members, few organizations defines the limitations to it. For instance, there shouldn't be direct reporting hierarchy (wife reports to husband, vice versa) or any other impact that business shouldn't face because of employment opportunity for family members.
If your company have any such policy, ask for it and refer the same for clarification. Further, the HOD is responsible for delivery and HR shouldn't deny the suitable candidate referred by HOD.
If the HOD is keen on getting your husband to on-roll, HOD can approach management rather than legal way. As your husband's is contract job, simply they can end the employment once contract period ends.
There is no such rule rather this is a mind frame work of your HR. You ask your HR to show which rules of our country preventing employment of husband & wife in one organisation. You need to check whether your establishment does not have any such policy?. Further, we are not governed by any global rule rather the Acts & rules of this country.
There in no corporate or business law, anywhere across the globe, that disallows the husband and wife to work together. There can be intimate companions (a man and a woman) though not legally married, living together - would any law bar them from working in the same organization?
What we need to remember, that at work, their roles would be professional, 'nuptial intimacy or congress' would be out, and performing their job roles, to limits of their expertise and commitment. Like any other members in the group, the would be colleagues.
Smile Bhavani, your husband can continue working in the same company.
Arif ur Rehman
Secondly referring to a global rule is a vague response and no such rule is enforceble in India unless permitted by Indian laws.
If any spouse is allowed to work on contract basis in the same company where other partner is also working, then why not on the company roll?
It does not stand to logic in the absence of global ban or law.
Access to the organizational statutes - the laws governing the company - that include all elements concerning your job vis-a-vis the organization, is your legal right. A copy of this document MUST be provided to each employee at the time of his/her appointment. It also includes terms and conditions for situations like your present issue.
As an employee, Bhavani, YOU MUST HAVE A COPY OF THE STATUTE, the HR or Management CANNOT refuse to provide you THE BOOK GOVERNING THE RULES OF THE COMPANY. There everything is spelled in black and white.
Arif ur Rehman