Shares of Bajaj Auto and Mahindra & Mahindra (M&M) came under pressure after their September auto sales data, with Bajaj Auto falling nearly 9% and M&M hitting a fresh 52-week low. Bajaj Auto reported a 12% decline in domestic two-wheeler sales, although a 34% jump in exports lifted overall two-wheeler sales by 5% year-on-year to 4.51 lakh units.