Answer : 1. "April 23, 1994"
Explanation :

1. Section 89 of the Rajasthan Panchayati Raj Act, 1994 provides for the constitution of Rajasthan Panchayat Samiti and Zilla Parishad Service.

2. The amendment to section 89 states that the expression “Village Development Officer” shall be substituted for the existing expression “Village-level worker/Gram Sevak”.

3. The post of Gram Sevaks under Section 89 does not exist in Panchayati Raj Institutions and hence the existing provisions are deleted.

4. The Rajasthan Panchayati Raj Act, 1994 came into force in the state on April 23, 1994.