BJP Rajya Sabha MP Vijay Goel on Saturday protested outside the residence of Delhi Chief Minister Arvind Kejriwal against the alleged Rs 400 crore tanker scam and demanded his resignation for suppressing information.Goel alleged that Kejriwal tried to save his predecessor Sheila Dikshit by "sitting" over the files for 11 months."Kejrwal has to answer why he sat over the files for 11 months. The Delhi government not only tried to save Dikshit but also allowed the previous contract to continue. This is shameful and he must resign," he said.Goel also claimed that Kejriwal was not "cooperating" with the Anti-Corruption Branch in its investigations but only blaming the central government."Kejriwal government is not cooperating with ACB in the investigations, rather blaming the central government for everything. The government should immediately suspend all the officers and ministers responsible for the scam till the investigation in completed."The scam exposes Aam Aadmi Party's claim of zero tolerance for corruption. It has been proved that Kejriwal government is corrupt and power hungry," he alleged.