Finally watched Special Chabbis. Good work on the props & effects to get the 1987 look:
– Old currency notes
– Old vehicles including the old ambassador models and Maruti 800
– Got the number plate colours right – white on black for private & black on white for commercial
– Getting the old look of Delhi, Kolkata & Mumbai, especially of the airports and the skyline
– Old ad hoardings
– Old telephone sets
– Indian Airlines logo along with the food trolley in cabin

However, a couple of goof ups that I noticed:
– Showing a blue coach at the railway station when they were all brown in that era
– A Maruti 1000/Esteem (launched in the 90s) parked on the road