Vijay Sales — provided incorrect and incomplete information about lenovo ideapad 330

Address:

Mumbai City, Maharashtra, 400072

I had purchased lenovo ideapad 330 on 5th august 2018 from vijay sales rcity ghatkopar branch.
While giving demo, the representative no where told me that cd rom is not available in this model. It is the representative's responsibility to provide each and every information to the customer.
Now i have purchased this laptop for my fiance who is in merchant navy and is on duty right now. Most of his work is depended on cd rom.in the model which i have purchased, there is just a dummy module of cd rom but inside it is empty. If such module is available the representative must have told me about this so i could have purchased another laptop. Now it is of no use to us anymore.
Another thing the representative told me that the speed will boost upto 2 ghz after you use the laptop. Its actual is speed is 1ghz and till date it has not boosted. Why this false information was provided to me?
When i called up vijay sales regarding my issue and told them to exchange the product they said there is no such policy of return or exchange here.
So i have registered a complaint against vijay sales with consumer forum and my complaint no. Is 908503.
Kindly let me know if there is any chance of exchange of this product?