Oracle vs Zepto

Need help in deciding offer, Oracle HR lowballing me, first he told the budget is 55L ( basically 50K usd RSU ) after being selected, then he make it $40K after 2 weeks.

Oracle Base - 34L + 2L(EPF) RSUs - $40K Vesting - 40, 30, 20,10 TC for 1st year ~50L IC3 YOE - 4

Zepto - yet to be discussed Before interview numbers were - Base 45L ESOP - 60L vested over 4 years

Please guide why HR is lowballing after verbal commitment of budget. He told last month was quarter end so they hired few folks already. How to deal with this. Shall I join or reject the offer ? And prepare more. As we are going IPO very soon, the number doesn't make much sense and the compensation decreases every year ( due to RSU ) and increment and hikes aren't good at Oracle. Also please guide shall I leave my current organisation? , everything is mostly going good year but layoffs might happen not a. Major one but small ones.

Current - 30L base 10L ESOP per year Not considering Zepto because of very bad marketing and toxic culture.