HRA CLAIM TWO DIFFERENT CITY

I have to live in two different cities 15 days in Mumbai and 15 days in Bangalore for my work. I have rent agreement for both the house in my name and PAN number of owner mentioned in it. Can i claim consolidate HRA for both the cities in my income tax return? I have rent receipts for both the houses for 12 months and all payments are made through banking channels. What are the factors i have be careful about before claiming HRA.