New Delhi, Sep 28 (UNI) Congress general secretary in-charge of communications Jairam Ramesh on Monday intensified his attack on the Election Commission of India (ECI) over the ongoing Special Intensive Revision (SIR) of electoral rolls, asserting that determining the citizenship of Indians is not the constitutional responsibility of the poll panel and demanding the resignation of Chief Election Commissioner Gyanesh Kumar. Reacting to an interview with former Supreme Court judge Justice Sudhanshu Dhulia published on Monday, Ramesh said the retired judge had categorically reaffirmed that determining citizenship was not the Election Commission's task. "The ECI is Election Commission of India,…