I hope everything goes well with you.

I'm glad to meet you at the * * Fair last year (or other time, according to the facts). Now we are preparing to go to India on business from * * to * * (the specific date), and we would like to visit your company on (the date of visiting him). May I know if it is available to you? Otherwise, please let us know your suggestions. Thanks in advance.

Looking forward to your reply as soon as possible.

salute

***

(Signature: English name, company, address, contact information, website, etc. )

PS: Don't write English business emails too long and wordy unless necessary. Foreigners are very concise. BEC's composition requires that each composition should not exceed 60 words, focusing on actual combat!