First things first. Unless a legally valid marriage subsists, there is not need to file for a divorce or search for proof of cruelty. So first verify your marital status.
If you and the man are Hindus, your 'marriage' could have legal status under the Hindu Marriage Act or Special Marriage Act. If you two belong to different religions, only Special Marriage Act provide legal cover for marriage. Did you comply with Hindu marriage rituals anytime after attaining age of 18? Did both of you file notice before competent authority under SM Act for registration of marriage under SM Act and then follow up after one month with actual registration of marriage? If answers to both questions are negative, then you don't have a legally binding marriage and therefore no need to file for divorce.
From the available data, I presume that what you refer to as 'Court Marriage' is nothing but an agreement signed before a notary between you and him to live as man and wife. Such agreements do not constitute a valid marriage unless the requirements of personal laws of the couple or special marriage act is complied with later. If that is the only document you have executed, relax - you are not married and need not file for divorce.
If that is the case, send him a notice of annullment of the agreement citing his refusal to comply and implement its provisions during the last 7 years. Do not mention 'marriage' in your letter and refer only to agreement. To avoid pitfalls and loopholes (which he may exploit), consult a lawyer and have him draft the letter. The lawyer will take care of any supplementary requireemnts that need to be attended to.
If, on the other hand, if you had complied with HM Act or SM Act to have a legally sustainable marriage, then you need to file a divorce. Even so, his failure to set up a marital home for you and take you from your parental home for 7 years is sufficient ground for proving cruelty. If you have proof of asking him to do so repeatedly, better. Even if you have nothing like that, no harm so long as he cannot prove that you voluntarily preferred to stay at your parental house. Consider this requirement only if it is proved that you have a sustainable legally valid marriage.