‘Berry’ developer and builder had an agreement with Government and Metropolitan Development Authority under which the developer was allowed to develop certain acres of land to construct affordable houses for middle class people in Delhi city and hand over part of them to the State Government. But it was found that Mr. Berry had built palaces for those who can afford Bentley and Mercedes (rich people).(a) Is this act of the builder liable to be challenged in High Court or Supreme Court under PIL and what type of writ can be issued?(b) Explain the concept of Public Interest Litigation.