Joshi, the owner of Goa brand gutka, is likely to undergo the polygraph test along with the brain mapping and brain finger printing tests, while Dhariwal will be subjected to the lie-detector test.
The brain-mapping test is similar to the Magnetic Resonance Imaging, wherein one can observe the functioning of the brain minutely.
"A person named Ravi Pujary made threatening phone calls to J M Joshi a couple of days ago," Arun Joshi, brother of J M Joshi said.
Siddiqui's name had cropped up in a statement given to the police by Jamiruddin Kalia, alias Jumbo, an accused in the Gutka case.
Police on Monday filed a charge sheet against Anees Ibrahim, brother of Pakistan-based mafia don Dawood Ibrahim, and three others in the Gutkha case alleging links with the underworld.
The judge gave the directions after Vimal Kumar Srivastava and Manish Tripathi, representing the six accused, moved an application seeking their exemption from personal appearance for Friday only on the ground they had prior commitment.
A sneak peek into how residents of the Keshavji Naik Chawl in Girgaum, Mumbai, welcome Lord Ganesha.
Joshi on Thursday appeared before the CBI in Delhi in connection with the case of alleged nexus with the underworld and is likely to undergo a lie detector test.
He ruled out any differences among the BJP's top echelon over the issue, saying: "The media has written enough about it but it [the speculation] will come to an end by tomorrow evening."
Under fire from the opposition in the wake of gang rape of a 23-year-old photojournalist in Mumbai, Maharashtra Home Minister R R Patil is personally supervising the probe into the case round the clock.
They were present in the pub when the blaze occurred, but fled without helping the guests, the official said.
The Congress on Tuesday reacted with sarcasm and derision to the Bharatiya Janata Party's decision to drop its founder leaders L K Advani and M M Joshi from the Parliamentary Board, saying they have been put in an "old age home" and their 'Margdarshak Mandal' (guiding committee) will only be a 'mookdarshak' (mute spectator).
According to a police official, the woman claimed to be have been criminally assaulted in July this year by some of the men arrested in the photojournalist case.
Syed Firdaus Ashraf traces the trajectory of Lal Kishan Advani from the highs of the 1990s to the present, when he may have to watch the elections from the sidelines.
A third accused in the brutal gang rape of a 23-year-old photojournalist was arrested on Saturday from south Mumbai even as police launched a manhunt for two others in the case, which sparked a wave of protests.
"Suppose the suit of Ram Lalla goes then you have no independent claim... You can't survive if the deity does not survive."
The apex court said the parties in the matter should be ready to start the hearing on the appeals which are before it.
The Supreme Court on Monday kept its options open on examining the dropping of conspiracy charge against accused like L K Advani, M M Joshi and Uma Bharti in the demolition of the disputed Ram Janmabhoomi-Babri structure in Ayodhya in 1992.
President Pranab Mukherjee presented five Padma Vibhushan, eight Padma Bhushan and forty-three Padma Shri awards at the Rashtrapati Bhavan in New Delhi.
The Supreme Court on Tuesday sought responses from Bharatiya Janata Party veteran L K Advani and others leaders on a plea against dropping of criminal conspiracy charge against them in the Babri mosque demolition case.
The resurrection of AAP has a lot of similarity with BJP's revival
She said she will go to Ayodhya on Wednesday and visit the makeshift temple to seek Ram Lalla's blessings.
A day after the photojournalist, who was working as an intern with an English magazine, was gangraped allegedly by five men, a special squad has been formed by the local police as well as by the Crime Branch to probe the case
The Mumbai police probing into the shocking gang rape of a 23-year-old woman photojournalist in Mumbai has picked up about 20 people for questioning but obtained no leads in the case so far, even as it has formed special teams to investigate into the matter, police said on Friday.
Notwithstanding L K Advani's resignation, BJP President Rajnath Singh made it clear that there will be no going back on the decision to appoint Narendra Modi as campaign committee chief.
The Bombay high court restrained the Maharashtra government and the police from taking any coercive steps against the editor of the Urdu daily.
Sharad Yadav says that reports about disquiet among the factions are 'sponsored'.
Kanhaiya Kumar is India's latest political rockstar. More so in Mumbai, where his address this evening gave Mumbaikars a glimpse of the heydays of the Communist movement in the city of textiles mills and mill workers.
After much delay and uncertainty, the landmark Food Security Bill was passed by the Lok Sabha on Monday which seeks to provide cheap foodgrains to 82 crore people in the country, ushering in the biggest programme in the world to fight hunger.
The second part of BJP president Amit Shah's interview to Sheela Bhatt/Rediff.com, to mark the completion of one year of the Narendra Modi government.