1. Send a legal notice to your In Laws demanding return/refund of all the amounts they have received from various sources on account of the death of your husband either as Nominees or otherwise,
2. You and your MIL are the joint owners of all such moveable and immoveable assets of your deceased husband,
3. Lodge a police complaint against your FIL for taking away your husband's LIC amount without passing it to you despite reciving the legal notice,
4. Write to the Bank and other organisations from where such payments have not yet nbeen colected stating that you are the legal heir of his asset which should not be passed on to any one,
5. If you do not get your share, file a Recovery Suit after collecting information about all the assets of your deceased husband,
6. Do not worry about their complaint accusing you for being the cause of your husband's death,
7. The matter shall have to be investigated and proved which is impossible since it is impossible to prove that you are responsible for his committing suicide unless there is a written ote left by him.