hi, HRITWIK!

there are 2 IITS in Uttar Pradesh

1] IIT Kanpur

2] iit Varanasi [iit bhu]

NITS ARE --

1] NIT ALLAHABAD

IIIT'S ARE --

1] IIIT ALLAHABAD

2] IIIT LUCKNOW

THERE ARE ALSO SOME GFTI [ GOVERNMENT FUNDED TECHNICAL INSTITUTES, WHICH ARE AS GOOD AS IIITS]

GFTI'S ARE-- 

1]-- J.K Institute of Applied Physics and Technology

Hello aspirant 

There are two IITs in uttar Pradesh named IIT kanpur and IIT Varanasi . There is one nit in uttar Pradesh named MNNIT Allahabad, UP and there are two  IIITs in uttar Pradesh named as iiit Allahabad and iiit Lucknow. iiit Lucknow is new iiit established in 2010 and have temporary campus.

Hope it helped to clear your delimma 

Hello,
NIT- Motilal nehru national institute of technology, Allahabad
IIT- Indian Institute of technology, Kanpur
IIIT- IIIT allahabad
Good Luck!