Implementation of Information and Communication Technology (ICT) at the school level has become a need of the hour during the pandemic period. The factor which plays important aspect for adopting ICT in the schools is lack of readiness of the teachers for adopting ICT in the classrooms. This is very closely related to the teachers’ perceived proficiency for usage of ICT effectively in the classroom. The present study tries to identify the factors like access to ICT, ICT material etc. affecting the perceived proficiency of teachers related to using ICT. The perceived proficiency is affected by number of factors such as school culture, school leadership, access to ICT resources, availability of digital content as well as support received from colleagues and the administration. These factors also impact the perception about ICT as an effective tool of teaching learning activity.The study uses the primary data collection of 515 school teachers located in Maharashtra. It uses SmartPLS3 software for theory building to see the relationship between exogenous variable affecting perception about ICT and perceived proficiency of the teachers to use ICT in the teaching learning process. The study concludes that positive perception about ICT as a teaching learning tool positively and significantly impacts teachers’ perceived proficiency to use ICT. Similarly, many of the factors such as availability of computer equipment and resources and ICT related digital content contributes perceived proficiency positively. The paper also provides few policy measures for effective implementation of ICT at school level.