Overlap In Joining And Leaving! Help Me Out

Hello All,
Hope anyone can help me.
I left company A on 26th March after serving the notice but signed the letter of appointment of company b on 17th March. I told the HR that my releving is on 26th but they told if you do not join we would revoke the offer, as i have already resigned i have to obey. But still after signing i took a break/leave from company B and completed by notice period on Company A.
Now there is a overlap which is reflected, how can i solve this issue. Niether of party is helping me out. Company A says he cannot change the releving letter. Company B says we cannot change the offer letter.
Please help guys! Its Urgent

Roi..
First of all the whole concept is legally not acceptable..
You cannot afford to be an employee of two different ompanies at same time.
The question here arises that your company B was aware that you are taking leave for serving the notice period or more than that were they aware that you have joind their company but still not relieved from your other company?

They knew that i was not relived from previous company and also i notified the company A about my leave to close all the formalities from Company B

Roi...
I know company would not have given you ant consent in written you better go and speak to and ask for their help may be they can make some changes in appointment letter and can help you.

Hi Pankhuri
Yes i have spoken to them but they say they cannot change it as company IT return has been filed.
Hi rsk
Yes its been more than 1 year now that i am in company A but when now when i have applied to a company c they have asked the question.

Hello Rio,
Did your problem solved? what was the resolution? I am going through the same problem and seek your help.

Hello Rio,
Was your problem solved? what was the resolution? I am going through the same problem and seek your help. Please reply.