Average incomes of workers in labour-intensive sectors came down by 3.45 per cent a month during the third quarter of this fiscal due to the deepening global economic crisis, an official report said.

Economists believe the declining trend would continue in the coming months.

"The average earnings have declined at the rate of 3.45 per cent per month during the period of study (October-December 2008)," the ministry of labour and employment said in its report after a survey of eight sectors including mining, textiles, gems and jewellery, and automobiles.

Average monthly income had gone up to Rs 17,228 in October 2008 probably due to the inclusion of festival bonuses, while it was Rs 16,934 in the previous month, it said.

Thereafter, earnings show a declining trend during November and December.

Average monthly earnings went down by 11.43 per cent in November to Rs 15,259 and by 0.5 per cent to Rs 15,182 in the following month, the report said.

"This (fall in earnings) is consistent with the slowdown in the global economy ... there is no surprise", Crisil principal economist D K Joshi said, adding that the trend would continue in the coming months.