Dekho mai aap ko bilkul sahi baat batau...

Pahli baat toh ye hai k 2018 ka up board ka General category k liye top 20 percentile 338 marks raha hai...  agar aap k up board m 338 marks aaye hai ya is se above aaye hai that means you are eligible or jee (main) and jee (main+advanced) exam 2019

Or agar aap k ye bhi nahi aaye hai toh aap NIOS board se 12th  board ka exam de sakte ho..  because sunne m aata hai k aap k UP board m jo students ek bar 12th board de deta hai wo wapas up board m 12th ka exam nahi de sakta... that's why un students k pass board change karne k alawa or koi option nahi hota...

Ek bat or dhyan se suno... aap only NIOS board se hi exam de sakte ho.... other boards se aap exam nahi de sakte... agar other boards se exam dete bhi ho toh aapko in future bahut problem aaygi... 

So mera personal suggestion hai k aap NIOS board se hi 12th exam do...

Ok....

Aap ne 12th class kis year m pass kiya hai... or aapka konsa board hai... or aap kis category se belong karte ho pahle ye sab batao