The company has invited bids from bankers and investors for the issue on Friday, they said.
The notes are rated AA by India Ratings and ICRA, and the issue will be settled next week.
In December, the company had raised 11.50 billion rupees by
selling bonds maturing in 10 years at a coupon of 8.8050%,
payable on a quarterly basis.
($1 = 81.9910 Indian rupees)
(Reporting by Dharamraj Dhutia
Editing by Sonia Cheema)