I've run into the same problem a few years ago (but at least got halfway the alphabet), searched around the internet and couldn't find a definitive answer to the question.
Which is probably why you are asking as well.
I resorted to listing a selection of countries using as strategy:
List at least the countries from which my passport contains a stamp.
Add logic neighboring countries until reaching the limit.
When I was searching around for a definitive answer, I observed two things: Everyone in this situation appears to resort to a similar strategy.
I didn't find any evidence of people running into problems due to this field.
Which leads me to conclude that you probably shouldn't overthink it.
But a definitive answer from official source would be nice, and I'm sure you will not accept anything less as the correct answer.
travel.stackexchange.com/users/13052/Some wandering yeti
In the next step, after the page where you have the problem, there is a step for uploading a scan of your passport in PDF format .
In that step, upload a 2-page PDF .
The first page can have the scan of your passport.
The second page of the PDF can have a letter explaining the issue and naming all the countries.
In the previous page of the application, in the box for countries visited, include a reference to this uploaded page.
Before doing this, e-mail the help desk to make sure it's alright.
If they say it is, then start the letter like: "Sir or Madam.
As discussed with the help desk...
" On the other hand, if they tell you to do something else, then, of course, do that.
You can reach them at indiatvoa@gov.in.
I had the same problem
while applying for a regular visa (I've never applied for an e-visa) a couple of years ago, and I got an official response from the company the Indian embassy had outsourced the visa application process to in Australia.
I asked: In the "Countries visited in the last 10 years" section, there is not enough space for all the countries I have visited.
What should I do about this?
The reply was: You may provide a covering letter with the details of countries.
The time when I got this answer was not the first time I had the problem.
Actually, I've been in this situation all seven times I've applied for a visa to India.
Sometimes I've written a supplementary letter with the countries, sometimes I've used abbreviations in the box (US, UK, DK, SL, etc.)
I've always gotten the visa, and have never had any questions asked regarding that particular section.
Although it's extremely unlikely that the person processing your application will even notice or know if you leave out a bunch of countries, I'm not personally inclined to do that.
I don't like taking such risks at all.
If doing this, though, consider consistency with details from all sections of past and future applications, as well as passport stamps, etc.
But as I said, I don't prefer this approach.
Going to extra lengths to be truthful in your application
gives a good impression to the person processing it.
This is especially helpful if one is in a situation where there's a thin line between getting accepted or rejected.
(I'm not suggesting this is the case for you, Mark, but I'm more talking in general to some of the people who may have the same problem in the future.
There are likely a lot of people who will indeed have this problem.)
I'd also like to add that from my experience of several instances of applying for visas to India, I've found that it's better to get every single detail right.
It's not always so, but in some cases, even a small detail being wrong can cause problems.
Personally, I always like to make sure that every single detail in my application is correct before submitting it.
And Mark, as a long-term resident of India, I want to welcome you, and I hope you enjoy your trip!
TL;DR: After having e-mailed the help desk to verify the idea, make a 2-page PDF containing both your passport and a letter regarding the countries and upload it in the passport section.
Make every single detail correct.
travel.stackexchange.com/users/41775/Revetahw says Reinstate Monica
If you are unable to submit a paper attachment to the form, then you could take a 'best practices' approach... List
the US, UK, Canada, then List all countries bordering India, then Then any other countries in the Commonwealth, then List any controversial countries
, then Write 'and more'
travel.stackexchange.com/users/1737/Gayot Fow
I've had the same problem.
Even when using ISO two-letter abbreviations separated by comma, I was able to list only 33 countries within the 100 char limit, which was short by some 20 countries for my past ten years of travels.
My opinion: If they do not allow you to make a complete list, it's hardly your fault.
In my case, I started listing in chronological order, even summarized all European countries under "EU", and "unfortunately" was forced to drop a lot of potentially "interesting" countries such as Jordan and Lebanon.
Anyway, I did not have any problem because of that (not even because they might have frowned upon such a long list of two-letter-codes)
travel.stackexchange.com/users/4799/Hagen von Eitzen
Make sure you include any SAARC countries you have visited in the list.
I think thats what they really care about.
I applied a year ago and just filled the field as best I could.
I forgot to list Nepal in this field and in the field after about SAARC countries even though I was applying from the Indian embassy in Kathmandu, stupid, but I still got a visa.
travel.stackexchange.com/users/43517/Jess
So I'm applying for an E-Visa for India.  At one point in the form it asks for the countries you've visited in the past 10 years.  I started listing them, got up to the 'C's, and received this error:   Now what? Do I just say "too many for your form" or just list a few recent ones? Or just the ones I spent the most time in?
Too many countries to apply for Indian E-Visa?
travel.stackexchange.com
<visas><india><paperwork>
travel.stackexchange.com/questions/68201
travel.stackexchange.com/users/101/Mark Mayo
You could list the countries with a stamp on your passport and group EU countries together, but apart from listing all SAARC countries you have visited, you could just fill the field as well as you can. There are a number of tips for filling in the India visa application form when all the countries you have visited will not fit. These include inserting the countries that have stamped your pasport, SAARC countries, listing countries in chronological order and just filling it as best you can.
There are a number of tips for filling in the India visa application form when all the countries you have visited will not fit. These include inserting the countries that have stamped your pasport, SAARC countries, listing countries in chronological order and just filling it as best you can.