Chakraborty, however, did not say how the government will bridge the revenue shortfall arising out of lowering of the corporate tax rate, steepest ever.
During the first half this fiscal, the government has raised Rs 4.42 trillion, 62.25 per cent of the total borrowing.
"Rs 2.68 trillion borrowing indicates that the fiscal glide path as indicated in the budget is being maintained," he said.
On overseas sovereign bonds, he said, the bonds to be raised in external currency are decided on the basis of current price, market appetite and market conditions and related issue and the structuring of the bond itself.
"We need very careful calibrations and deliberations before it enters in the market. The work on that is presently going on to work out the structures and various pros and cons and it is a process which is long. For this year, all the borrowing of the government will presently be in rupee-denominated bonds," the secretary said.
As regards the second half borrowing, he said, it is 37.75 per cent of the total gross borrowing will be spread over 17 weekly auctions of Rs 16,000 crore each, he said.
However, it will be Rs 14,000 crore in the last two auctions, Chakraborty added.
The government introduced benchmark that is 2-year and 5-year in 2018-19 and one benchmark of 7-year in April 2019 which will be continued.
The government will issue floating rate bonds to the extent of 10 per cent of gross issuances during the year.
Borrowing through treasury-bills is being planned in such a way as to result in net outflows of Rs 20,000 crore during the third quarter of the fiscal, he said.
Switching of government securities will continue while buyback of securities will also be performed in the second half, the secretary added.
The central bank also provides funds to the government under Ways and Means Advances (WMA) mechanism to help it tide over short-term mismatch in receipts and payments.