All of these sentences are syntactically acceptable English.
However, the first and third are not colloquial. They sound somewhat strange to a native user of English, the first one especially so.
A good sentence is the middle one:
I will call you when I am in India.
or something along the same lines, e.g.
I will call you when I reach India.
"You have lit" can be correct usage, as in: "Once the flame appears, you have lit the candle."
Neither "I gone there once" nor "I been there once" are correct. One would say "I have been there" or "I've been there" OR "I have gone there" or "I've gone there". As for "I was there once" and "I went there once", they are both acceptable. The word "once" in all of these statements is not necessary unless the author is specifically stating that they were at said location only once (not twice, not thrice).
Both onetime means occurring only once, or formerly, depending on usage as adjective or adverb. one time; as to have a turn only once.
Once a year is correct.
i will call you when i reached there ok.. so make sure you will be free at dat time so that we can spend some time together.
It takes eight different letters to spell "morphology", but some are used more than once. I don't know what morphology means. The correct usage of the word 'morphology' is still a mystery to me. Identify your morphology at once!
One thing to share about India is that it was once an island.
Because India was once a British clont
"You once met the prime minister." is a correct sentence.
Buddism Started in A place which we call now nepal. Nepal was once part of india, so if you ask anyone this question some people will say India. Buddism was found by Siddartha Gautama. He was raised as an hindu.
India was once a british colony(:
Sorry, but If he doesn't find a way to do this on his own, he is not really your boyfriend. That is, because most guys will make effort to call their girls - or write a letter. You can give him the benefit of the doubt ONCE to be sure he has the correct number, but after that let him go.