In an Instant Pot, on sauté mode, add oil and let it heat up.
Add beef and sauté the beef for 3 to 4 minutes.
Next add ginger garlic paste and mix well for 2-3 minutes.
Add onion and mix well.
Next place the whole tomatoes in the Instant pot along with tomato paste.
Mix everything well for 3-4 minutes.
Next add homemade karahi masala and mix well for 2-3 minutes.
Now add fresh lemon juice and cilantro and mix well.
Close the lid, select pressure, pressure it for 25 minutes or until the beef is tender.
Vent the steam out and open the lid.
The gravy would be runny.
Give it a good mix.
Then let it cook on sauté mode for 5 minutes or until the gravy thickens.
Garnish with ginger and cilantro.
Serve it immediately with a hot naan or chapati.