Hello Riya,
You can find the previous year question papers for DU MCA & Pondicherry MCA at the following link. Please go through the link and get started.
http://entrance-exam.net/forum/general-discussion/previous-7-years-question-papers-answer-keys-mca-entrance-exam-delhi-university-2159782.html
http://entrance-exam.net/forum/general-discussion/last-5-years-pondicherry-university-tancet-mca-entrance-model-question-papers-1294415.html
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