A builder who had been arrested for allegedly duping a bank of Rs 30 crore was caught at Mumbai airport on Sunday after he escaped from police custody earlier in the day, a Thane police officer said.

Jagdish Wagh, 37, from Dombivli in the district is accused of duping CKP Bank to the tune of Rs 30 crore after defaulting on loans taken on two flats and a plot of land, and then selling them fraudulently without the knowledge of the bank, the police officer said.