The Unique Identification Authority of India (UIDAI) is likely to spend Rs 200 per head for providing a 16-digit number to people as the allocation for the ambitious project may see a 20-fold increase in the 2010-11 Union Budget.

The UIADI, for which government had earmarked Rs 100 crore in the last fiscal, may get an allocation of nearly Rs 2,000 crore in this year's budget, official sources said.

The authorities are planning to rope in vendors in all the cities who would be paid Rs 200, half of which will be spent on opening a bank account of the resident who is to be issued the unique 16-digit number, the sources said.