HDFC Bank on Wednesday reported a 2.3 per cent year-on-year rise in its consolidated net profit to Rs 17,657 crore for the October-December quarter, restricted by slower loan growth.On a standalone basis, the largest private sector lender's net profit came at Rs 16,735.50 crore for the period, up from Rs 16,372.54 crore in the year-ago period, but marginally down from the preceding quarter's Rs 16,820.97 crore.