Unable to login to yahoo.co.in mail from my computer

Try login with some other servers:
Some Yahoo Servers :

http://cn.mail.yahoo.com/?id=77070 for CHINA
http://edit.india.yahoo.com/config/mail?.intl=in for ---> INDIA
http://edit.europe.yahoo.com/config/mail?.intl=uk ---> for EUROPE/UK
http://login.yahoo.com/config/mail?.intl=cf ---> for FRENCH CANADIAN
http://my.yahoo.co.jp/ --> for JAPAN
http://login.yahoo.com/config/login---> for USA

Sincerly, Thiyaga

It sounds like you are having a problem with Yahoo.
Have you ever thought about changing your e-mail address to google.com? Google

Hi i hope 1)someone might have hacked your id and changed your password, 2)whether you might have told user id and password to someone else 3)probably you should check capslock or others while logging 4)type full [email protected] or .co.xxx 5)Another might be server problem from yahoo 6)Suggestions have included going back to Classic Mail, using Firefox or Google's Chrome browser instead of Internet Explorer, updating the Flash and Java programs, and clearing History and cookies
please go through this you can find the solution better,hope this might help you,please go through this carefully http://www.webdevelopersnotes.com/tips/yahoo/yahoo-mail-problems.php
thank you

An email from Yahoo consist of two parts separated by the 'at' (@) sign. The first is the Yahoo ID followed by @ and then is the server name (or address) which can be yahoo.com, ymail.com, rocketmail.com or a country specific domain (eg. yahoo.co.uk). If you've forgotten the Yahoo ID there is a way to get it back quickly by verifying your identity.
Open the Yahoo login page and click on "I can't access my account" link located under the login fields. This takes you to a help page with four options - select the third one.
Now enter the alternate email address you had provided when you had first create the Yahoo ID, your birthday, country of residence and the postal code. You shall then be sent the Yahoo ID information over email.
Yahoo password doesn't work? If you've lost the Yahoo account password, you can quickly reset it to a new one. Again, visit the Yahoo login page (above) and choose the second option - My Password doesn't work".
Enter the Yahoo ID and the security (wavy text). In the next screen, provide your birthday, select country of residence and type in your postal code. Now follow the instructions to reset the account password.
Important points on how to take care of Yahoo login details (ID and password)

Here is the link to create yahoo.co.in mail id
https://login.yahoo.com/config/mail?.src=ym&.intl=in

Hello.
Usually when you get the reset cookies token means the internet server/connection is poor.
You can try to log-in on another server or wait for a while (if possible a day or a few hours) to log-in again.

yahoo's UK page has instructions on this and here they are: id rather paste theirs than type my own...

1. From the Tools menu, choose "Accounts."
2. Select the "Mail" tab.
3. Click the "Add" button.
4. From the Add menu, click "Mail."
5. In the text box labelled Display Name, type your name and click "Next."
6. In the Email Address box, type your Yahoo! Mail address (be sure to include "@yahoo.com") and click "Next."
7. Under "My incoming mail server is a…" select "POP3."
8. Type "pop.mail.yahoo.co.uk" in the Incoming Mail (POP3, IMAP, or HTTP) Server box.
9. Type "smtp.mail.yahoo.co.uk" in the Outgoing Mail (SMTP) Server box.
10. Click "Next."
11. In the Account Name box, type your Yahoo! Mail ID (your email address without the "@yahoo.com").
12. In the Password box, type your Yahoo! Mail password.
13. If you want Outlook Express to remember your password, check the "Remember password" box.
14. Do not check the boxes labelled "Log on using Secure…"
15. Click "Next."
16. Click "Finish."

Important: The Yahoo! Mail SMTP server now requires authentication. To turn this setting on:

1. From the Tools menu, choose "Accounts."
2. Select the "Mail" tab.
3. Double-click the account labelled "pop.mail.yahoo.co.uk."
4. Select the "Servers" tab.
5. Check the box next to "My Server Requires Authentication."
6. Click "OK."

To control deletion of messages from the Yahoo! Mail server:

1. From the Tools menu, choose "Accounts."
2. Select the "Mail" tab.
3. Double-click the account labelled "pop.mail.yahoo.co.uk."
4. Select the "Advanced" tab.
5. If you'd like to keep a copy of your email messages on the Yahoo! Mail server, check the box next to "Leave a copy of messages on the server." If you want to delete your messages from the Yahoo! Mail server after viewing them in Outlook Express, don't check the box.

If you're unable to send email, try using port 587 when sending via Yahoo!'s SMTP server. Here's how to make this change:

1. From the "Tools" menu, select "Accounts."
2. Select your Yahoo! POP account and click the "Properties" button.
3. Click the "Advanced" tab.
4. Next to "Outgoing server (SMTP"), change port 25 to 587.
5. Click "Apply." Then click "OK" and "Close."

Your account is locked when someone enters an incorrect login multiple times (usually around 30). Yahoo! locks the account for "security reasons" and you are unable to access your chat names. Cool thing is, these are a piece of cake to unlock. All you need is a list of Yahoo! servers to log in with. Every time you login, you are using what's called a server to access Yahoo! You login with a cookie, which is sort of like an information packet or ID proving that you are who you claim to be, and the account is yours.

When people attempt to log your name in multiple times with a locking tool, all they are doing is logging in over and over with an incorrect password until your cookie expires, which means you will no longer be allowed to login. So, when you find yourself locked, what you need to do is refresh your cookie. But how can you do that when the Yahoo! server you were using has blocked you?

Simple, find another server. Yahoo! has servers all over the place. There are more than I'd care to count. I'll include a pretty decent sized list with this tutorial. All you have to do is paste one of these servers in your browser and log in on the page you see. Unless you have been locked on that server as well, you will receive a fresh cookie and will be able to log in to Yahoo! Messenger again.

Tons of people try to go through their e-mail and login there to unlock an account, but a smart locker will shut down your mail server first, then cut off your chat server. Most people don't know what to do if the e-mail is blocked, so they give up trying. That's why I don't even bother with the e-mail method. I simply pick another server, log in, and I'm good to go. There are so many servers out there that it is impossible to lock them all. Even if they could, the lock is only for about 12 hours, and then you're back in business.

Some Yahoo Servers :

http://cn.mail.yahoo.com/?id=77070 <--- China

http://edit.india.yahoo.com/config/mail?... <--- India

http://edit.europe.yahoo.com/config/mail... <--- Europe/U.K.

http://login.yahoo.com/config/mail?.intl... <--- Canada

http://my.yahoo.co.jp/ <--- Japan

http://login.yahoo.com/config/login <--- USA