Watch out for these penny stocks locked in the upper circuit on March 06 Watch out for these penny stocks locked in the upper circuit on March 06 A decline in oil prices is seen as some optimism over a comeback in petroleum demand this year was reduced by China's weaker-than-expected GDP estimate. Kaustubh Bhosale / Monday, March 6, 2023 / Article rating: 4.1 The Sensex and Nifty50 indices of Indian equities opened higher on Monday, following gains in other significant markets around the world.