The US is on track to issue more than a million visas to Indians this year, a senior official has said, assuring that the Biden administration is committed this summer to make sure it processes all of the student visas for Indians whose school starts this fall. US Assistant Secretary of State for South and Central Asia Donald Lu also told PTI in an interview this week that they are also prioritising work visas: H-1B's and L visas, the most sought-after by IT professionals from India. The H-1B visa is a non-immigrant visa that allows US companies to employ foreign…