An Indian immigrant who was deported after being convicted of arranging bogus marriages has been given the green light to return to Britain after winning the latest round of a human rights fight with Home Secretary Theresa May.

The 46-year-old woman says she should be allowed to come back because her nine-year-old son, who lives in Britain with his British father, is suffering as a result of being separated from her.

An immigration judge ruled in her favour last year and three Court of Appeal judges have upheld that decision.

Appeal judges, who dismissed an appeal by Mrs May, did not name the woman in a written ruling on the case.

Lord Justice Underhill, who headed the appeal panel, said Mrs May should not fear that the decision would open the floodgates.

He said each case would "turn on its own facts".

The woman had arrived in the UK in 2002 on a "visitor visa", said appeal judges in their ruling.

She had become involved in a conspiracy to "facilitate bogus marriages".

Judges said she had also entered into a bogus marriage - and been given an extension of her "leave to remain" as a result.

She had been arrested and charged in 2003 but had then "fled to India".

Judges said she had been convicted in her absence.

In 2005 she had lawfully married a Briton in India.

She had then been allowed back into Britain after making an application using a false passport.

In 2006 she had given birth to her son and in 2007 had been given indefinite leave to remain - under her false identity.

Shortly after the birth her true identity had been discovered.

In 2008 she had been given a 12-month jail term after being convicted of obtaining leave to enter the UK by deception - plus an additional 12-month jail term for the 2003 bogus marriage offences.

In 2009 she had been deported.

Her husband had stayed in Britain.

Initially her son had spent some time in India with her and some time in Britain with his father.

But judges said after about two years the arrangement had proved "too unsettling" for the youngster and he had started to live permanently in the UK with his father.

In 2012, lawyers representing the woman had asked officials to revoke her deportation order and allow her to return to the UK so she could live with her husband and son.

They suggested that rights to family life - enshrined in Article 8 of the European Convention on Human Rights - were being undermined and said separation was having a "seriously damaging" effect on the boy.

UK Border Agency officials had refused to revoke the deportation order.

But in 2014 an immigration judge had decided that the deportation order should be revoked - after the woman challenged the UK Border Agency decision.

Mrs May had then challenged the immigration judge's decision.

Appeal judges had analysed arguments at a hearing in London in July this year - before announcing their decision on Tuesday.