We can do school of architecture and planning with diploma in architecture assistant ship

Sorry but a diploma is not accepted at SPA Delhi. You see admissions are through JEE Main Paper 2 and it is mandatory to have passed 10+2 or equivalent. A diploma is not considered as equivalent to 10+2 for JEE Main Paper 2.You can however try and write NATA to apply for B.Arch admissions in a good state university or private college. NATA allows diploma students also.