Foreign secretary Jeremy Hunt has been urged to meet the family of a Scottish Sikh imprisoned in India.

Mark Field, Foreign Office minister for Asia, said he would personally ask his boss to step in on the case of Jagtar Singh Johal, who has been held since November 2017.

The case was raised by SNP MP Martin Docherty-Hughes, who led a Commons adjournment debate on his constituent's arrest, detention and alleged torture by the Indian authorities.

Indian authorities allege Mr Johal, from Dumbarton, was involved in financing the killing of Hindu leaders.

His family say he is a peaceful human rights activist who has been wrongly targeted for translating documents in relation to 1984's Operation Blue Star, during which the Indian army stormed the Golden Temple in Amritsar - Sikhism's holiest shrine.

Mr Docherty-Hughes said he had been raising the case in Parliament for a year, but the foreign secretary was yet to meet the Singh Johal family.

He said: "These allegations of mental and physical torture, threats of violence against family members, simulated execution and forced confessions were horrifying enough when I first raised them a year ago.

"It has got harder as the year has gone on, and the longer it takes for the authorities of the Republic of India to address the issue the possibility of torture recurring cannot be ruled out."

Mr Field explained his own frustration at the length of time negotiations were taking and pledged to get Mr Hunt involved.

He said: "These things do often take time and the Indian legal process can be slow, as indeed can ours. Sometimes one has to wait for a considerable length of time to get a response.

"I know that is incredibly frustrating, and particularly when there are allegations of maltreatment and torture that becomes an even more serious state of affairs.

"We've met Mr Johal's brother Gurpreet on three occasions in the last year to try and discuss the very slow progress in relation to this case and I've offered up a further meeting to the family.

"I will try to make representations that they can meet up with the foreign secretary and I expect I shall also be there at any such meeting going forward."