The company's stock lost 1.82 per cent to Rs 2,366 on the BSE.
At the NSE, it was down 1.94 per cent to Rs 2,365.10.
Bajaj Auto had on Tuesday reported a 29.41 per cent decline in net profit at Rs 590.9 crore for the three months ended September, hit by a one-time expense of Rs 340.29 crore related to Pantnagar plant in Uttarakhand.
The company had posted a net profit of Rs 837.16 crore in the same quarter last fiscal.
During the second quarter, the company's revenues from exports rose to Rs 2,736 crore as against Rs 2,125 crore in the same period of the previous fiscal.