The record collection from the goods and services tax (GST) of Rs 1.68 trillion has raised hopes that finally the near five-year-old indirect tax regime may yield Rs 1.5 trillion a month sooner than later. However, this may not happen during the current financial year.A key finance ministry source said achieving Rs 1.5 trillion a month is difficult during 2022-23. "My hunch is that the average revenue per month may go up to Rs 1.3-1.35 trillion this financial year," he said.CBIC to focus on scrutiny of returns and audit for better compliance during current fiscal; finance ministry official sceptical, says April usually has high collection due to payment of arrears