A lot of prop desks use these strategies with time horizones varying from 1 day to months.. In India, Edelweiss has a good pair-trading desk..so does Kotak.. If you're a client with these firms, they share their trade suggestions with you...
On the more adventurous side (and more gratifying as well).. you can build your very own model !! Either how, for now..you can track these trades..
Long Axis Bank Short HDFC
Long Axis Bank Short HDFC Bank
Long KotakBank Short Power Finance Corporation
Long Bank of Baroda Short Union Bank