Among IHM Pusa and DIHM Lajpat, the former is definitely better. As it is a central university. India Today 2021 has also ranked IHM Pusa at 1 in India for Hotel Management. 

You will get great exposure at IHM Pusa. You will get the chance to work at every hospitality program of any high-profile party and Govt. event. You will also get to attend Tourism awards by the Govt. of India each year.