S.147: Reassessment —Reassessment notice issued would remain in operation unless it is specifically withdrawn, quashed or gets time barred Subsequently- Subsequently Assessing Officer desired to withdraw of notice without issuing any formal withdrawal of notice — The law does not recognise two parallel assessments- In the absence of withdrawal of the first notice of reassessment, the proceedings would survive -Second notice of Reassessment is held to be not valid.[ S.148 ]