MUMBAI (Reuters) - Indian rupee and bonds rose in early trade on Wednesday, boosted by a fall in global oil prices and on the central bank's announcement to buy bonds via open market purchases.

The Indian rupee opened at 72.18 to the dollar, its strongest since Sept. 21 and compared with 72.6750 on Tuesday, while the 10-year benchmark bond yield fell to as much as 7.70 percent, its lowest since Aug. 2. The paper had ended at 7.76 percent on Tuesday.

The Reserve Bank of India will buy 120 billion rupees ($1.65 billion) of government bonds on Thursday via open market operations.

Oil markets struggled to find their footing on Wednesday after plunging 7 percent in the previous session, with surging supply and the spectre of faltering demand keeping investors on the edge.

($1 = 72.6100 Indian rupees)

(Reporting by Suvashree Dey Choudhury and Savio Shetty, Editing by Sherry Jacob-Phillips)