Brother, it is an accounting job.
Numpad is a necessity.
Put that as necessity & look only for 15.6". You won't find a 14" device with numpad, that being said, 15" 2 in 1s are cumbersome to use as a tablet, as said earlier by Goku, even 14" ones are.
Sadly Asus ZenBook Flip, Dell Inspiron 2 in 1 & even HP Pavilion x360 are 14" at max in India:
*store.hp.com/in-en/default/hp-pavilion-x360-14-dh1011tu-8bg02pa.html
Throwing out touchscreen is the sacrifice you need to make to get a good laptop for your budget. Importing from the US might only be the alternative as laptop options are not good in India. You get 15" 2 in 1s in the US for $1000 or sometimes lower on sales.
Could only find this 15" 2 in 1, which is not suitable for office setting:
Acer Nitro 5 Spin Core i5 8th Gen - (8 GB/1 TB HDD/Windows 10 Home/4 GB Graphics) NP515-51 2 in 1 Laptop Rs.78999 Price in India - Buy Acer Nitro 5 Spin Core i5 8th Gen - (8 GB/1 TB HDD/Windows 10 Home/4 GB Graphics) NP515-51 2 in 1 Laptop Black Online - Acer : Flipkart.com
Get 39k model of this one, sacrificing touchscreen:
*www.lenovo.com/in/en/laptops/ideapad/s-series/Lenovo-IdeaPad-S145-15AST/p/88IPS101207#tab-customize