The Punjabi singer was sentenced in a 2003 human trafficking case.
The Delhi Police arrested Ankit and Sachin Bhiwani Sunday night. The two wanted criminals belong to Lawrence Bishnoi and Goldy Brar gang alliance.
Counting of votes for the bypolls in Delhi, Uttar Pradesh, Punjab, Tripura, Andhra Pradesh and Jharkhand will be taken up on Sunday.
Shubhdeep Singh Sidhu, known as Sidhu Moosewala, was shot dead by unidentified assailants in Punjab's Mansa district on May 29.
The central government will review the parameters to provide security to threatened individuals following the gunning down of young sensational singer Sidhu Moosewala after the Punjab Government abruptly withdrew security for 434 persons.
According to them, Bishnoi, who is in the custody of the Delhi Police's Special Cell, has alleged that Moosewala was involved in the killing of Akali Dal youth leader Vikramjit Singh.
The body of the 28-year-old singer-politician, who was shot dead on Sunday, was brought to his home in Moosa village amid tight security on Tuesday morning from Mansa civil hospital.
The Uttrakhand and Punjab Police in a joint raid, have detained a man in Dehradun, who is said to be involved in the killing.
His father also demanded that the Punjab government involves the CBI and the NIA in the inquiry.
Not that his major hit numbers were musically phenomenal, but they did manage to catch the fancy of ordinary Punjabi young men -- guns and jeeps being the keywords.