Which event earned for Vallabhai Patel the title of 'Sardar' ?

H.P.A.S. Combined Competitive (Preliminary) Examination-2016 (Paper-1 - General Studies) was mentioned in Advertisement No.1/2017 Dated: 01/01/2017.
LAST DATE FOR RECEIPT OF APPLICATIONS was : 30/01/2017

Himachal Pradesh Administrative Combined Competitive Examination consistsof three successive stages to complete the selection process.

4.1. STAGE - I (PRELIMINARY EXAMINATION) :
Preliminary examination
A) Initially, Preliminary examination consisting of 02 papers based on objective type (multiple choices) questions on the following pattern will be held.