Hello V2608,
I recollect a film dialogue--"those who don't have the courage to speak the truth don't have the eligibility/right to lie".
You lied once thinking you can get away with it.......obviously due to greed [one can be 100% sure you must have projected a higher CTC than what you are actually getting].
Now you have THREE choices:
1] Tell the new Company the truth--you don't have a choice on how THEY will react. So be prepared to face it......which COULD be forgetting this Offer.
2] Forget this Company on your own & look for new openings......obviously you will be idle until you get another job. Be ready for that scenario.
3] Go back to your old Company & ask to be reinstated. Again, be ready to answer their queries on WHY you want to come back.
If you can't take responsibility for your actions--BUT look for shortcuts all over again to cover-up what you did--one can only pity you.....surely NOT empathize with you.
And--LEARN your lesson from this & correct yourself.
All the Best.
Rgds,
TS