The Delhi Police`s Special Cell has sent a notice to Twitter in connection with an inquiry into a complaint regarding the alleged Covid-19 `toolkit` and sought a clarification from the microblogging site for classifying a related tweet by BJP leader Sambit Patra as "manipulative", an official said on Monday.

It appears that Twitter has some information that is not known to the police. This information is relevant to the inquiry, Delhi Police PRO Chinmoy Biswal said.