My old post.
If Tara has booked limited edition expensive luxury car in Mumbai, then she has to pay some advance amount right? so enough to leave evidence. 
Guess high end car dealers also have to share list of premium customers with Govt.
Tara is flying high with easy cash in hand so has to fall down, even if she wants to ditch Rajeev, still hoping she gets caught soon.
(ofcourse writers lack common sense, neither basic idea how banking / tax systems work which can be googled, so high chances they can irritate viewers with some unconvincing twist)
TARA only has to get caught by bank, police and Amruta first.
How much ever loopholes visible to us in cheque fraud, but still writers were careful to save Rajeev from beginning.
It's Tara who practiced Virat's signature, she stole his cheque book, forged cheques with his sign, went to far away different Mumbai branch of Indie bank in person, created fake id of Amruta's bank identity to show as some silly proof to cashier, changed her looks to fake appear as Amruta, withdrew huge amounts of cash more than once, carried those heavy cash bags in person out of bank, later deposited that huge cash into her personal bank accounts,
Now income tax dept also has to send notices to her. (bcoz in real world it happens on big cash transactions )
Rajeev is NOWHERE in picture in the forefront, and Tara won't possibly take her lover's name as he has to be safe outside, to bail her.
Even if Tara takes Rajeev's name as mastermind of fraud, we know he will deny saying after marrying Nimrit he left Tara, so she is framing him out of vengeance.
330