BENGALURU, Nov 28 (Reuters) - India's blue-chip Nifty 50 stock index hit a record high on Monday, hours after the benchmark Sensex also hit an all-time high, boosted by oil marketing companies as crude prices slid on demand concerns due to protests in China over COVID-19 curbs.

The NSE Nifty 50 index jumped 0.53% to an all-time high of 18,611.05, breaking a record it held since Oct. 19, 2021. Earlier in the day, the S&P BSE Sensex index rose 0.61% to an all-time high of 62,674.49.

The gains in Indian equities defied the weakness in other Asian markets, which fell as rare protests in major Chinese cities against strict zero-COVID curbs raised concerns about the growth implications for the world's second-largest economy.

Those concerns also caused a slide in oil prices as China is a top importer. However, in general, oil-importing countries like India tend to benefit from lower crude prices.

The gains in Indian oil companies were led by Reliance Industries, India's most valuable company, which surged 3.64%. Oil marketing firm Bharat Petroleum Corp jumped 4.31%. (Reporting by Bharath Rajeswaran in Bengaluru; Editing by Savio D'Souza)