Maintenance after 7years

Both of you should apply to concerned court, you are entitled for maintenance irrespective of the fact that you did not demand (legally) for the last 7 or 20 years.

Contact, consult and engage a local prudent lawyer for necessary proceeding. 

Yes, you and your son are en titled to get maintenance from your husband..File petition u/sec 125 Cr.P.C through lawyer in concerned court.

Just file the application unders section 125 r pc  in the court and  seek maintenance from the date of seperation; Mention pervious date and also file aacounts in affdavit by stating your expenditure.

You are entitle to maintenace for yourself and your child.

There is no limitation for filing maintenance case, since it is a rucurring right. File a suit orproceedings uinder Sc. 125Cr,P,C, of D.V.C. or under The adoptions and maintenace Act.

Yes, no limitation applies as cause of action is continuous.

In response to your query,

Section 125 of the Code of Criminal Procedure-

This code provides that any person who has sufficient means to maintain himself cannot deny the maintenance to the wife, children, and parents if they are not able to maintain themselves. Because there are no limitations for filing a maintenance case therefore you are entitled to get maintenance from your husband for your son and yourself. You just need to file an application for the same.

Regards, 

Aryan Raj