This paper presents the experiments carried out at Jadavpur University as part of the participation in the CLEF 2007 ad-hoc bilingual task. This is our first participation in the CLEF evaluation task and we have considered Bengali, Hindi and Telugu as query languages for the retrieval from English document collection. We have discussed our Bengali, Hindi and Telugu to English CLIR system as part of the ad-hoc bilingual task, the English IR system for the ad-hoc monolingual task and the associated experiments at CLEF. Query construction was manual for Telugu-English ad-hoc bilingual task, while it was automatic for all other tasks.