Cardiff Crown Court heard how police investigated Harpal Singh after registry officers became suspicious when he turned up in the Welsh capital of Cardiff to marry last May.
The 51-year-old was found with identity documents and passports in several different names.
It was also discovered that large amounts of cash had been paid into his bank account by South Asian men desperate to find a wife to earn them the right to stay in the UK.
He pleaded guilty to five charges of conspiracy.
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"For substantial financial gain you recruited and to some degree exploited others and received around 10,000 pounds."
Lawyers for Singh said he wished to return to India voluntarily after serving his sentence.
Two students pleaded guilty to conspiracy by paying him to arrange marriages for them days before their education visas were due to expire and were each jailed for 12 months.
Czech "bride" Romana Nistrove had her 12-month jail term suspended with unpaid community work when she admitted the same offence but told the court she is four months pregnant and was desperate for money at the time.