Sotheby's -- London [Images]'s premier auction house -- may have clarified that the rare armour it has put on its auction list does not belong to Guru Gobind Singh but the chapter is "not closed" for the SGPC, which has threatened to sue the auction house for using Guru's name.

The Shiromani Gurudwara Prabandhak Committee, the highest temporal body for Sikhs in the country, said on Friday its fact- finding committee was thoroughly investigating the issue and if it is established that they used Guru's name to get high bids, they would sue them.

"We have been following it consistently. They have said that the armour does not belong to Guru Saheban, but the chapter is not closed here.

"Our fact-finding committee, consisting of six scholars, is looking into the matter to know the truth behind the armour's origin," SGPC chief Avtar Singh Makkar told reporters.

SGPC general secretary Sukhdev Singh Bhor said the auction house tried to play with the sentiments of the Sikh community.

"They first tried to link it with Guru Gobind Singh and then contradicted it. If it is established that they did it to instigate Sikh community for higher bidding, we will sue them for using Guru's name and playing with sentiments of people," Bhor said.

The auction house had issued a statement, categorically stating that the armour does not belong to the 10th Sikh Guru.

The SGPC fact-finding committee, which also has some eminent Sikh personalities from London, would meet on Saturday.