Is declaration of property necessary in Govt. service.

i had purchased a plot in 2008. i am in a govt service .i joined in 2007 .as i was new in service i did not know the rules hence i could not declare the purchase of property to deparment as per rule .later on when i came to know about that rule regarding intimation of purchase of property 2yrs later still i did not declare fearing departmental disciplinary action. now 8 yrs after purchase of that property i want to declare my purchased property to department. purchase is of total legal money . is there any law which can protect me from departmental action due to delay in intimation