BENGALURU, Dec 27 Reuters India39;s benchmark indexes resumed their recordbreaking run on Wednesday, boosted by a global rally on renewed optimism that the U.S. central bank would start cutting rates by as soon as next March.

The bluechip NSE Nifty 50 and the SP BSE Sensex both hit alltime highs in the session, before they settled 1 higher at 21,654.75 points and 0.98 higher at 72,038.43 points, respectively.

The Nifty has hit record highs in 12 of the 18 sessions so far in December. The last time was on Dec. 20, which sparked some profitbooking and led to a threesession lull before the latest jump.

Even the more domestically focused midcaps rose 0.38, while smallcaps gained 0.45 on the day, also helped by domestic current account data as well as data showing manufacturing activity in top consumer China improved last month.

The sentiment is positive and could continue for the remaining few days of the week as, generally, December is a strong month for the markets, said Apurva Sheth, head of market perspective and research at Samco Securities.

Eleven of the 13 major sectoral indexes gained, with the metals index rising 1.4.

Aluminium producer Hindalco and cement maker Ultratech Cement were top percentage gainers on the Nifty, advancing 4.4 and 4.2 respectively.

The central bank said on Tuesday that the country39;s current account deficit narrowed in the JulySeptember quarter as merchandise trade deficit was lower and services exports grew.

The narrowing of…