<br/>The CPI(M) has asked the UPA government to fast track CBI investigation into the role of RSS leaders in a spate of bomb blasts. The Party Politburo in a statement pulled up the Congress-led UPA government for tardy pace of investigation in the link between RSS leaders and Hindutva terror groups. CPI leader Atul Anjaan has also called for expediting the case on priority basis and demanded the facts should be revealed to the nation.