UP Police reached Mumbai to conduct a probe into the case lodged against web series 'Tandav'.
The four-member team arrived at the residence of 'Tandav' director Ali Abbas Zafar.
Issuing notice, UP Police asked Zafar to be present before the Investigation Officer on January 27.
'Tandav' landed in controversy for allegedly 'hurting religious sentiments'.
At least three FIRs have been lodged against the makers and artists of 'Tandav'.
The FIRs have been registered in UP's Lucknow, Greater Noida and Shahjahanpur.
'Tandav', a nine-episode political thriller, started streaming on Amazon Prime last week.
The web series stars Saif Ali Khan, Dimple Kapadia and Mohd Zeeshan Ayyub among others.