har ki doon

Hi everybody, I am new to this forum. .I am Planning a Trek to Har Ki Doon and ruinsara taal in may this year. My queries are as follows : 1) Where from I hire porter / mules? 2) Whether mules can go upto ruinsara taal? My trek detail is given below. 1st day- haridwar to sankri 2nd day- sankri...