Marketing people are difficult to get from job portals in general.
I found a lot of good cv in quicker.com. But in mumbai.
One way is to get in touch with the colleges offering bms and boom / ba courses. MBA courses also,if your budgets are higher.
My experience is that in Bangalore, few will be interested in working at ₹15000 in a marketing job. They can get a bpo job (sitting in ac) for 15-20k without experiance.
From India, Mumbai