Disclosed herein is method and system for providing domain-specific response to user query. The user query is split into one or more sub-queries and domain of each of the sub-queries is determined based on domain-specific keywords present in each of the sub-queries. One or more responses to each of the sub-queries is retrieved from corresponding Domain-specific Query Handlers (DQHs). Finally, each of the one or more responses are collated for providing the domain-specific query to the user. In an embodiment, the DQHs are hierarchically arranged based on their importance and relevance to the user query. Further, the resources are allocated to each of the DQHs based on their hierarchy, thereby optimally distributing the resources among the DQHs. In an embodiment, the method of present disclosure ensures completeness/sufficiency in the response, before collating the one or more responses and providing the domain-specific response to the user.