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Er.Akhtar Rizvi is known as Rizvi Sir who have the knowledge of multiple language.Rizvi sir is a real time expert of latest ...

Er.Akhtar Rizvi is known as Rizvi Sir who have the knowledge of multiple language.Rizvi sir is a real time expert of latest ...

Automatic night lamps using LDR || Automatic street lights || Rizvi Sir Technical classes this video to very informative for electronic ...