Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

KOLKATA: Bandhan Bank has roped in former chief economic advisor to the finance ministry Ashok Kumar Lahiri to head its 10-member board and stuffed as many as four former top bank executives in the board aiming to raise its stake in the bottom of the pyramid customers even as the established ones from State Bank of India and ICICI Bank are in a race to have more customers from the unbanked population.

Answer: industry: Bandhan Bank, finance