False case fir

False case registered against entire family members by the Police on the instigation of one of my client. On 04-02-15 I received a notice from police to appear before PS, according to the notice, I attended where client present, police illegally detained me in PS, fm 04.02.15 to midnight 05.02.15, inhuman torture, extorted money from us, by threatening case will register against me and released after getting bribe amt. Again police started demanding money for no fault of me. I lodge complaint against PI and client to NHRC, PMO, MHA, and State Govt. on 09.02.15. When this came reference to SP, Police Inspector abusing his powers lodged false FIR against entire family members on 29.02.15. After taking bail, I approached SP, Orally complaint against P.I and written complaint given against client. No action taken fm SP, after lapse of 6 mnths, i lodged private complaint against P.I and Client. Both P I and client neither taken bail nor appearing in the JMFC court. Charge sheet not filed on both above cases. P.I indirectly threatening me, that he will make accused me, in some other cases and send me to Jail. Is it the Indian constitutional law only for poor and innocent people, not for Rich and who are in power? How can I acquittal/quash fm false complaint against my family members? Can I get justice, complaint against P.I and recover of extorted money, When Dept is trying to save his skin? Pls give me legal advice to get justice....