MUMBAI, Aug 11 (Reuters) - Small Industries Development Bank of India, or SIDBI plans to raise at least 15 billion rupees ($189.48 million) through issuance of bonds maturing in three years, six months and 10 days, three merchant bankers said on Thursday.

The state-run company has invited coupon and commitment bids from bankers and investors for the same on Friday, they said.

The notes are rated AAA by CARE Ratings and the issue will close for subscription on Aug. 17.

The issue has a greenshoe option to retain an additional 25 billion rupees and will mature on Feb. 27, 2026. ($1 = 79.1630 Indian rupees) (Reporting by Dharamraj Lalit Dhutia)