unfair dismisal by employer

I am working in a finance company. Home loans. My employer has suspended me on 2nd Feb'2016. I am regularly meeting my HR persons and my dept persons for reply. But it is all in vain. I am just told that they are investing the things and thy have handed the case to police for enquiries. I am working as asst credit manager my profile is to appraise the file and forward it for sanction . Mgmt is suspecting that I have taken some cash from the sales staff and appraised wrong files. Which is absolutely wrong. I have been 100%. Loyal to my job and have done my work with full determination and dedication. During this days they have not issued me any suspension letter. And are asking me to resign with the suspension which I denied as I know I am innocent. Along with me the mgmt have terminated five other staff immediately. I am only suspended. Even after 45days of suspension they are not able to give me proper explanation of my guilty. Thy don't have any proof also. They have today issued me a show cause notice mentioning to defend my self. I hv completed 8yrs of service with this company and had always placed my job above my family. Today I am feeling very bad and angry about the way the company is behaving with me... Kindly suggest what should I do. I am a middile class family girl . My husband expired I have a daughter of 7 yrs. Should I go legally. What about expenses. I am in bad position pls help. Shrutika....