Since March, the collection has been over ₹1.4 lakh crore and in August it was ₹1.43 lakh crore.

"The collection in September is likely to be little more than ₹1.45 lakh crore. Improved business activity is expected to yield better collections in coming months," news agency PTI quoted the official as saying.

ALSO READ: GST collection likely to cross ₹1.5 lakh crore from October: Revenue Secretary

The official revenue figures will be released on October 1. Earlier in 2021, the mop-up in September was ₹1.17 lakh crore.

As per estimates, the average yearly revenue from GST in 2022-23 is expected to be around ₹1.55 lakh crore, the official said.

On 14 September, Bajaj while addressing a Central Board of Indirect Taxes & Customs function had said, ""For the last couple of months, we've been trying very hard to reach that milestone of ₹1.5 trillion (lakh crore). But we have been failing a bit sometimes by ₹2,000 crore and sometimes by even ₹6,000 crore."

"The revenue that we will collect in October, the data of which will come on November 1, I am sure from that month onwards the CBIC on a regular basis shall deliver ₹1.5 trillion revenue for the government," the Union secretary said.

The collection in April was at a record high of ₹1.68 lakh crore. In May, GST revenue was ₹1.41 lakh crore, in June ₹1.44 lakh crore, ₹1.49 lakh crore (July) and ₹1.43 lakh crore (August).