India, Aug. 23 -- Nobel laureate economist Amartya Sen on Friday expressed concerns over the special intensive revision (SIR) of electoral rolls, saying that a better system cannot be created by trampling on the rights of the poor.

Sen warned that the SIR exercise, like the one being carried out in Bihar, could end up "disenfranchising" a large number of poor and marginalised people if not handled sensitively.

"Yes, it's true that from time to time various procedural tasks need to be carried out. However, in doing so, one cannot create a 'better system' by trampling on the rights of the poor," news agency PTI quoted Sen as saying.

According to Sen, who won the Nobel Prize in Economics in 1998, many people in India don't have documents....