RSUs are stock units and not stocks. Your company will buy back those shares once they’re vested and pay you equivalent money as your salary.
But the price of the stock depends on the valuation of the company at the time when you sell the stocks back to the company. If you think the valuation can dip, you’ll lose money.
A secondary market may not be the right place to sell. What is the valuation that the employer is telling you?
If the cost of 50 RSU is 16L and is vested across 4 years, you’ll make 4L per year. If the company’s valuation doubles, you’ll make 8L per year.
If you switch from this company after 1 year with a 30% hike on cash component, you’ll make an extra 5.4L. So, I wouldn’t put a lot of weight on RSU to evaluate the offer.