Rishi Sunak’s Rwanda deportation bill will become law after peers eventually backed down on amending it, opening the way for legal battles over the potential removal of dozens of people seeking asylum.

After a marathon battle of “ping pong” over the key legislation between the Commons and the Lords, the bill finally passed when opposition and crossbench peers gave way on Monday night.

The bill is expected to be granted royal assent on Tuesday. Home Office sources said they have already identified a group of asylum seekers with weak legal claims to remain in the UK who will be part of the first tranche to be sent to east Africa in July.