Kamlesh Tiwari was shot dead at Naka area of Lucknow earlier this month. He succumbed to injuries at a hospital during treatment. He was the founder and chief of the Hindu Samaj Party.
The accused, identified as 34-year-old Ashfaq Hussain Jakir Hussain Shaikh and 27-year-old Moinuddin Khurshid Pathan were arrested by Gujarat's Anti-Terrorism Squad (ATS) from the Gujarat-Rajasthan border on October 22.
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A total of five persons have been arrested so far in connection with the case. Other accused -- Rashid Pathan, Faizan Sheikh, and Maulana Mohsin Sheikh - were on October 22 sent to police custody for four days in connection with the case.