Signs of recovery are welcome news for Asia's third-largest economy, which is widely expected to mark its first full-year contraction since 1979 this year. The pandemic is spreading in India at the fastest pace in the world.

The Nikkei Manufacturing Purchasing Managers' Index, compiled by IHS Markit, jumped to 56.8 in September from 52.0 in August, above the 50-level separating growth from contraction for a second straight month. It was the highest reading since January 2012.

"The Indian manufacturing industry continued to move in the right direction, with PMI data for September highlighting many positives. Due to loosened COVID-19 restrictions, factories went full steam ahead for production, supported by a surge in new work," noted Pollyanna De Lima, economics associate director at IHS Markit.

"While uncertainty about the COVID-19 pandemic remains, producers can at least for now enjoy the recovery."

A sub-index tracking output hit its highest since December 2007 and new orders expanded at the sharpest pace since February 2012, helped by both domestic and foreign demand which grew for the first time in seven months.

Although input prices increased at a slower rate in September, manufacturers raised their selling prices after having cut them since March to secure sales.

Despite the significant rebound, firms cut staff for the sixth month in a row. Coronavirus-related distortions have already made millions jobless.

The sector is unlikely to get much support from the Reserve Bank of India over the coming months as persistently high inflation is expected to force the RBI to remain on the sidelines.

The RBI early this week postponed a policy committee meeting that was slated for Sept.29-Oct. 1 and said it would be rescheduled. It did not give a reason for the move.

Still, business optimism about the coming 12 months hit its highest since August 2016.

(Reporting by Indradip Ghosh)