I'm in total agreement with the idea that you should interview a woman the same way you interview a man. And look for the same skills and traits.
If, however, this is first time ever that you've interviewed or worked with a woman in an engineering role, I'll offer a couple thoughts.
They don't fit the same "standard model" - I don't think most will disagree with me when I point out that there's a certain baseline for male engineers - quiet, thoughful, probably introverted and definitely analytical - they align startingly well to one or two Myers-Briggs types and have a certain flavor. Many other men in engineering don't fit this model and it works out fine, but you'll even here them described as "not your average engineer..."
In my experience, women engineers don't have such an obvious type. Most have the standard types of geek experiences in their life history (was any science/math/computer nerd really popular during puberty?), but in many ways they are different from their male counterparts in ambitions, ways of describing careers and their relational/communication skills. Be aware that if you stacking them up against an archetype that "different" does not equal "bad", really visualize what this personality will do within your team and decide whether that will be good.
Be aware of the "like attracts like" problem. The Loudest Duck is a good book for this, the theory on this is that people who are more similar tend to "click" and that connectedness leads to better options and opportunities and feedback for those who are "like" their bosses. There's a huge number of variations on this - gender, sexual orientation, religion, nationality, interest, etc. It's generally possible to overcome, but it's a thing to be cognizant of - the working mom, for example, will rarely ever hang for a beer. If you want to chat, grab some tea/coffee with her at lunch or in the early afternoon.
I don't want to get all female-preachy, but I will - there is a difference in a very general scale in how women and men put forth ideas, and how they ask questions. Women tend not to be as aggressive in putting forth ideas, and many times they will feel the need to qualify facts and opinions as if they are uncertain. This certainly varies from culture to culture, and person to person. But in general, when someone (even a man) seems tentative, decide whether you need an aggressive personality, and investigate whether tentativity is more of a personal style, or true lack of knowledge.
That said - I'm a big fan of both parties adapting. As a woman in the workplace, I've learned to put forth my ideas in a way that is strong and yet comfortable for me, personally. So I'd say to anyone - if you find you're bending over backwards you've bent too far - they have to be able enough to volunteer ideas to be a viable part of a team, and it's fair that if you have a culture of aggressive promotion of ideas, you need team members who can rise to the occasion.
Indian Women Engineers
I'd agree with the archetype that most foreigners working in the US are willing to either clearly describe any necessary accommodations (I'm vegetarian, so if you're getting me lunch, please get me a salad with cheese but no meat). Of course people vary remarkably, so there's always a spectrum.
India is particularly hard to categorize in that it's a big country with a lot of different cultures and religions within it. So there's no great generality. Most Hindus don't eat beef. Many Southern Indians eat very little meat at all. Muslims don't eat pork. Buddhists, Jains and Sikhs all have other dietary restrictions. So.. at the very least, make an inquiry if you are serving food before assuming, because many different foods can be off limits.
Handshakes are fine and pretty common. After that, I'd default to no touching. Different groups have different rules, mileage varies considerably, but it's much easier to stay of trouble if you keep your hands to yourself. That said - normal stuff like catching someone about to fall down a flight of stairs, or helping with rough terrain or peculiar situations is always fine.
Don't make assumptions. There are certain other norms about behavior and mindset, but they are as variable as India itself. Not to mention that the evolution of industry with a great deal of technical work being done in India has changed urban culture dramatically in last 10 years. In many cases, those with a history of technical work on their resumes are quite comfortable within your average Western environment and won't have any problems making themselves clear or blending with a team. Even if her last job was in India, she may well be coming from a nice, air conditioned office, with roller chairs, keyboard trays, and the general issue of overbooked conference rooms.
I won't say everything is the same - relationships between bosses and employees are different, but they are evolving at a pace where it's not easy to make any real generalization.
(I'll qualify all that with the fact that I'm a long time lover of India and Indian culture - I've studied traditional dance and martial arts of India for 12 years and visited twice and lived with friends both times. That said, I'm born and raised and trained entirely in the US.)